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Wind Turbines - Science topic
Explore the latest questions and answers in Wind Turbines, and find Wind Turbines experts.
Questions related to Wind Turbines
like pi, pid, neural network etc.
Wind Energy
1. Unforeseen and enhanced wind turbine failure rates,
mostly in newer and bigger models,
are mangling 'wind energy' revenues?
2. Whether wind projects would remain to be cost-competitive
in those locations that are not windy enough?
3. How easy would it remain to bring electricity
from wind farms to urban areas –
with most ideal wind sites being located in remote locations?
4. How easy to repair a complex electromechanical and hydraulic wind turbine?
How about the maintenance of wind turbines?
Total repair budgets keep growing exponentially?
Leading edge erosion soon after the installation of wind turbine?
5. With nearly 1,000,000 blades in operation globally,
on an average,
are we facing nearly 10,000 incidents of blade failure every year?
If so, whether the turbine failures are
on the ascending trend across the globe
(along with blades falling off and sometimes, even, full turbine getting collapsed)?
6. Extraordinary events such as
‘lightning strikes’ (one of the main causes of wind power outages) and
bird impacts
have become a routine phenomenon (leaving aside transportation damage)?
7. Fires in wind turbines are the 2nd leading cause of accidents
after blade failure (following lightning damage)
and are ahead of structural failure?
8. In the rush to decarbonize the power supply,
whether the concept of ‘wind droughts’
was not given due weightage?
How about the wind drought warnings by meteorologists?
9. With power converters being among
the most frequently failing components of wind turbines,
have we advanced successfully
in producing
efficient power-electronic converters
associated with variable-speed wind turbines?
10. With the advancements in materials,
manufacturing and design techniques, and
operations and maintenance tools,
how long a typical 15 MW offshore wind turbine
with a rotor diameter of 250 m would survive
in the absence of any repairing work (for generators, or, gearboxes, or turbine blades)?
Can rotor blade arcs extend up to 100m?
11. How easy would it remain to have a precise control over excessive vibration, voltage fluctuations, faulty cooling systems and mechanical/electrical bearing failure - associated with the malfunctioning of generators (resulting from wind loads, severe weather or thermal cycling) that could probably lead to excessive heat and fire?
Similarly, can we have a precise control that would probably
avoid the gearbox failure resulting from
dirty/water-contaminated lubricant, incorrect bearing settings, (significant) temperature variations, & transient loads causing abrupt accelerations and load-zone reversals?
Dear ResearchGate Team,
I hope this message finds you well. I am writing to express my interest and request more publications focused on wind turbine blade repair and inspection tools, equipment, methodologies, and technologies on ResearchGate.
As someone deeply involved in the wind energy sector, particularly in wind turbine blade maintenance and repair, I have noticed a significant gap in accessible literature and research papers addressing the latest advancements, best practices, and innovative solutions in this critical area.
Given the rapid growth of the wind energy industry globally, there is a pressing need for more scholarly articles, case studies, and technical reports that can contribute to improving the efficiency, sustainability, and safety of wind turbine operations through enhanced blade repair and inspection practices.
I believe that facilitating greater access to research on these topics will benefit professionals like myself and support the broader community of researchers, engineers, and technicians striving to advance the field.
Could you please consider prioritizing and encouraging researchers to publish their findings related to:
- Tip repair methodologies and techniques
- Advanced inspection tools and technologies
- Case studies on successful repair projects
- Comparative studies on different repair materials and their effectiveness
- Innovations in preventive maintenance strategies
Your support in promoting and disseminating knowledge in this area would be invaluable to professionals and organizations committed to optimizing wind turbine performance and sustainability.
Thank you for considering my request. I look forward to your response and any guidance you can provide on how we can collectively contribute to filling this knowledge request for more publications about wind turbine blade repair and inspection.
Best Regards,
Koray ALTINKILIC
The Total deformation of my onshore wind turbine model is not changine when I am changing the cohesion, angle of internal friction and unit weight of the soil.
Therefore I tried to check reaseon of the error on a sample model made of steel by changing material propertiies of Steel. The load of 945 Pa is constant. The bottom of the model is fixed but the total Deformation of the top face of the model is not changing when changing the material properties as in the table attatched.
ANSYS, ANSYS Workbench, Steel, Wind turine


Hi everyone,
I plan to use fluid dynamics software to simulate the scour problem of monopile of offshore wind turbines, which is similar to the well-known bridge scour problem. I want to use this numerical simulation to get the depth of scour and the change in pore water pressure in the seabed. Now the more famous fluid mechanics software include OpenFOAM, Fluent and Flow3D, etc. Which is easier to learn? I already know that OpenFOAM is the most difficult. Which is better to learn, fluent or flow3D?
Best regards,
Ben
I am working on developing a MATLAB Simulink model of Wind turbine with PMSG followed by MPPT Boost converter. I have gone through so many literature and videos but I am not finding clear solution of the following quires:
- Rotor speed (rad/sec) of PMSG measurement is fed to Wind turbine as input but the block input is in( p.u.) i.e. Generator speed (p.u.). Most of the literature and videos indicate the conversion with a gain of certain value between 145 to 157 not mentioning how the value is achieved.
- Torque (p.u.) : Output of Wind turbine is fed to PMSM (Torque in Nm) through a gain without a clear idea of what is the conversion process.
As per my understanding and doing reverse process I found that:
- Assuming the No. of poles of PMSM is 4 and operating frequency is 50Hz.
- the rotor rated speed is N = 120f/P = 120 x 50 /4 = 1500 rpm.
- converting into rad/sec = 2*Pi*N/60 = 157.096 rad/sec. (This is what most of the literature and simulation files of Math-works are using irrespective of the No. of poles originally used in PMSM block).
- Now coming to torque (p.u.) of Wind turbine feeding as input torque (N-m) to PMSM:
- Assuming the power of 8.5kW or whatever specified and rotor rated speed wr =157.096 rad/sec.
- The base torque is T = P/wr = 8500/157.096 = 54.1127 N-m
- Multiplying this Torque value to convert output torque obtained from wind turbine Tm(p.u.) to feed as input to PMSM block.(Found in most of the literature and simulation files of Math-works files)
My doubt here is when I tried to follow the same, I am not getting the desired output power or results.
Kindly help me if I want to design a Wind conversion system of 10kW what should be the specifications of PMSM block.
Wind turbines extract a lot of energy, about 30-35%, that passes through.
Now they are building a lot of them, more and more powerful.
Change wind trajectory is easy, if a lot of obstacles is in its trajectory, it goes to upper layer
Stop wind rises A LOT temperatures, as happens in cities with tall buildings
Wind also decrease water temperature when passing over it. In Malaga now the sea water temperture in August reach 30ºC, that is more than 10º over previous years and wind do not refresh at night
And at last, wind distributes the temperature avoiding large differences
can u suggest research frame work using ahp research method
when I want to implement a solver for calculation of the induction factor in Blade Element Momentum method using DMST modeling I have a problem. the process of the calculation of the induction factor is an iterative process. I should guess an induction factor and using that induction factor I should calculate the thrust coefficient from Blade element theory. then I should equalize that with the equation of thrust coefficient from Momentum theory (I use Gluaert correction too).the equation is such:
if : 0 < a < 0.4 : C_TH = 4a(1-a)
if : 0.4 < a < 1 : C_TH = 4a(1-0.25a(5-3a))
if the a calculated from this equation is equal with the guessed induction factor that is used in Blade element theory the guessed induction factor will eb accepted, unless we should update our guess and repeat these process.
I have used Gradient Descent algorithm , induction factor seed with 1e-06 increment But they did not work.
can you please suggest the best algorithms to do this iterative process?
Best regards!
Yazdan Abbasmosleh
I am simulating a floater of a semisubmersible wind turbine in Abaqus using the CEL method. However, the model becomes unstable after some time and the Eulerian domain kind of explodes. This happens after the Total Energy of the system becomes negative. I am running the model with double precision and hard contact in the general contact algorithm. Any idea how to fix this issue?
Hi,
I'm currently preparing for experiment which is supposed to test the performance of my wind turbine, but I have problem with finding a paper to find out the methodology and equipment that i need in order to properly measure my wind turbine. First i found a paper where they used Torque meter and Tachometer to get Cp and wing tip ratio. But my supervisor said that i should find a cheaper solution because torque meters are expensive. I found some papers in which scientists use Tachometer and Generator in order to measure their wind turbines. But i can't find any detailed information what kind of generator or any additional equipment i need. Can somebody give me a tipp where i can find useful information about suitable equipment for my experiment?
Hello everyone, I want to create the geometry of a wind turbine blade using a CAD system, in fact to determine the length of the profile along the blade, I use the chord of the airfoil , but what about the root of the blade where there is a circular foil ? How to determine the radius of the those circular airfoil that form the root of any horizontal axis wind turbine?
below you will find an image of the wind turbine ple where the circular profiles are clear.
Hello fellow researchers,
I am currently engaged in a 2D simulation of a three-blade vertical axis wind turbine using CFD Fluent, incorporating sliding mesh simulationI. I have conducted various simulations at different RPMs, and upon calculating the average torque from the torque R-plot file, I observed that the average torque is consistently negative, indicating a counterclockwise blade movement.
Specifically, I performed simulations at 20 RPM, 53 RPM, 83 RPM, 101 RPM, 120 RPM, and 137 RPM, all with a constant initial velocity of 10 m/s. Notably, only the first two simulations at 20 RPM and 53 RPM yielded positive average torque values, while the remaining simulations showed negative average torque.
I am reaching out for your valuable suggestions regarding potential mistakes in my approach. Your insights would be greatly appreciated.
What innovative technologies and design approaches are being explored to optimize the efficiency and sustainability of wind turbines, and how might these advancements address current challenges in harnessing wind energy for power generation?"
Salem , I hope you are well.
We already own a P=1.5 kw, Us=400v/230V, Is=3.7 A /6.4 A asynchronous machine. We would like to use this machine as a double-fed asynchronous generator (wind turbine), but the nameplate does not indicate the rated rotor current.
We've carried out numerous tests at different rotor frequencies (6 Hz, 12 Hz, 14 Hz), but each time the generator's rotor current increases by more than 12 A, whereas we want a stator voltage Us = 400 (v).
What are the maximum values for rotor current, rotor phase-to-phase voltage and rotor frequency, to protect our machine?
Hello
I am seeking research that is similar to the following title: 'Experimental and Numerical Investigation of the Effect of Serration Trailing Edge on Flow Separation on Wind Turbine Blades.' Could someone please assist me in locating it?
Best regards
Hello
I am testing some wind turbines in a square duct I fabricated that is square with dimensions: 140cm x 140cm and 2m long. I am using an axial fan with 135cm diameter and the wind turbines I am testing have diameters of 1.35m, 1.30m, and 1.25m?
I was wondering what's the optimum place to position the wind turbine apart from the fan.
Hi OpenFOAM users! I found that using the actuationDiskSource there is a small jump in the velocity field near the actuator disc cells. I couldnt found a solution on internet. Any help?

The science of statics of solids is based on the view that every load creates internal moments, - intersecting - in the cross-section, and corresponding deformations. I say that these moments, distortions, and shears created by the loading, disappear 1. By deflection of moments into the ground 2. distortions, and shears disappear by increasing the length of the cross-section and the correct dimensioning + the compression of the cross-section. See how I do it In figure 1 there is a frame construction with columns. If you apply the lateral force of the earthquake to it, it will deform as in figure 2 If you put two pre-tensioned walls on it, and their ends are anchored to the ground, there will be no deformation either in the body of the wall or in the nodes of the structure, and without deformation there will be no failures. The moments at the nodes also disappear, the shear moments also disappear, the deformations disappear, the tensile forces also disappear and the failures of the cooperation mechanism of concrete and steel that of relevance disappear. The lateral force of the earthquake has been deflected into the ground.
Will you tell me... Your theory is correct but impractical. 1. An application can be commercialized if it is cost-effective and easy to implement, without the need for a specialized team of people. 2. Today's regulations protect buildings by 99% Therefore, try to contact qualified engineers who deal with special projects, eg bridges, wind turbines, heavy grain silos, fuel etc etc. Reply. The only case to make this method commercially applicable outside of large projects and projects of importance such as hospitals and public busy places where the cost comes second, could be used in heavy-duty prefabs whose cost is low, because they are manufactured, and whose method I propose solves problems such as the height and the number of floors (so they enter, also inside the city) and because my method is more efficient in elongated walls like these prefabs. There are also projects such as wind turbines whose compaction costs are greatly reduced by using anchors.
Η επιστήμη στατικής βασίζεται στη θεώρηση ότι κάθε φόρτιση δημιουργεί εσωτερικές ροπές και τέμνουσες στη διατομή και αντίστοιχες παραμορφώσεις. Λέω ότι αυτές οι ροπές οι παραμορφώσεις και οι τέμνουσες που δημιουργεί η φόρτιση αντιμετωπίζονται
1. Με εκτροπή των ροπών μέσα στο έδαφος
2. Οι τέμνουσες και οι παραμορφώσεις αντιμετωπίζονται με αύξηση του μήκους της διατομής και την σωστή διαστασιολόγηση + την θλίψη της διατομής.
Δες πως το κάνω Στο σχήμα 1 υπάρχει μια κατασκευή πλαίσιο με υποστυλώματα.
Αν της εφαρμόσεις την πλάγεια δύναμη του σεισμού θα παραμορφωθεί όπως στο σχήμα 2
Αν του βάλεις δύο τοιχώματα με προεντεταμένα και πακτωμένα τα άκρα τους στο έδαφος όπως δείχνει στο σχήμα 3 δεν θα υπάρξει παραμόρφωση ούτε στον κορμό του τοιχώματος ούτε στους κόμβους της κατασκευής και χωρίς παραμόρφωση δεν υπάρχουν αστοχίες.
Πάνε και οι ροπές στους κόμβους πάνε και οι τέμνουσες πάνε οι παραμορφώσεις και οι εφελκυσμοί και οι αστοχίες της συνάφειας περίπατο.
Η πλάγια δύναμη του σεισμού έχει εκτραπεί μέσα στο έδαφος.
Θα μου πείτε ....
Η θεωρία σου είναι ορθή αλλά ανεφάρμοστη.
1. Μια εφαρμογή μπορεί να γίνει εμπορική αν είναι οικονομική και εύκολα εφαρμόσιμη, χωρίς να χρειάζεται εξειδικευμένο συνεργείο.
2. Οι σημερινοί κανονισμοί προστατεύουν τα κτίσματα κατά ποσοστό 99% Επομένως προσπάθησε να απευθυνθείς σε διπλωματούχους μηχανικούς που ασχολούνται με ειδικά έργα, πχ γέφυρες ανεμογεννήτριες βαριά σιλό σιτηρών, καυσίμων κλπ κλπ.
Απαντώ. Η μόνη περίπτωση να γίνει εμπορικά εφαρμόσιμη η μέθοδος αυτή εκτός των μεγάλων έργων και των έργων σπουδαιότητας όπως τα νοσοκομεία και τα δημόσια πολυσύχναστα μέρη όπου εκεί το κόστος έρχεται σε δεύτερη μοίρα, θα μπορούσε να χρησιμοποιηθεί σε προκατασκευασμένα βαρέως τύπου τον οποίων το κόστος είναι χαμηλό, διότι είναι βιομηχανοποιημένα, και των οποίων η μέθοδος που προτείνω τους λύνει προβλήματα όπως το ύψος και ο αριθμός των ορόφων ( οπότε μπαίνουν μέσα στην πόλη ) και διότι η μέθοδός μου έχει μεγαλύτερη απόδοση σε επιμήκη τοιχώματα όπως αυτών των προκατασκευών.
Υπάρχουν και έργα όπως οι ανεμογεννήτριες των οποίων μειώνεται κατά πολύ το κόστος πάκτωσης χρησιμοποιώντας τις αγκυρώσεις.
Christian B,Frederik Z,Robert B,et al.Description of the DTU 10 MW reference wind turbine [R].Denmark:DTU Wind Energy Laboratory,2013.
Hello all
I am currently simulating wind turbines without contacting the generator (attached image) I have adopted a steady wind speed of 12 m / s but the system response (mechanical energy) is incorrect. Where is the problem ... who can help me ??
thank's.
analyzation of wind flows around wind turbines around wind using Matlab codes and models.
For my master's study, I need the parameters of an offshore wind turbine built with a jacket type foundation. I need a study in which the basic dimensions of the jacket type are known and the field characteristics (wind, wave load, etc.) are known. Do you have such a work or an article you can send?
Is it technically viable to employ small wind turbines to generate electricity that could, in turn, power larger turbines? If such a setup were implemented, what would be the effect on overall efficiency? Would the efficiency of the larger turbines increase or decrease as a result? Additionally, it would be valuable to ascertain whether any previous studies or practical applications have explored this concept and documented their findings.
Hi there, i have a solidworks based final year project, mainly flow simulation and FEA analysis, i have made a wind tunnel for my wind turbine which is sealed from all the sides, both sides with seperate lids, and when i try to do the flow simulation, the computational domain does not fall on the lids (it does not recognize the lids) it forms on the wind turbine or the assembly, and when i try to manually extend the computational domain on to the lids, this error occurs " Face<1>@LID7-1 is not laying on the boundary between solid and fluid region error


Temperature measurement procedures in wind power plants
While practicing the load cases in the publication "Design Load Basis for Offshore Wind Turbines - DT Wind Energy Report No. E-0133", a question came to me when
I tried to simulate the DLC15 regarding the EWS for offshore wind turbines. To my understanding, the EWS wind condition is a transient scenario describing the wind shear suddenly changing from a normal wind profile (NWP) to a nose-like profile and then going back. Why is the EWS condition given by Equations (26) and (27) IEC 61400-1? In IEC 61400-1, the NWP is assumed to have a power index of 0.2; however, the NWP for the offshore wind turbines should be 0.14. The value 0.2 should be for onshore turbines. Please correct me if I misunderstand the description of the DLC15 case.
I share with you the simulink model of the sliding mode control technique applied to a DFIG-based wind power system
Link to download the simulink file: https://fr.mathworks.com/matlabcentral/fileexchange/124140-sliding-mode-dfig-wind-turbine?s_tid=prof_contriblnk

HelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHelloHellHelloHelloHelloHelloHelloHelloHelloHellooHello Hello Hello
Hello everyone, I am a new user of Abaqus.
I try to simulate the impact between a vessel and an off-shore wind turbine for my Thesis. The wind turbine is inserted in the sea-bottom. I have a problem regarding the modeling of the interaction between the soil and the embedded part of the wind turbine.
I have modeled this interaction using non-linear connector elements according to the following link: https://simulation-blog.technia.com/simulation/subsea-modeling-with-soil-and-structure-interaction-in-abaqus-part-1
However, this type of modelling imposes a load on the embedded part of the wind turbine resulting to its movement (without any other load imposed on it). Is this normal? Could you please advise on how I can eliminate this movement, as my intention is that those connectors describe the stiffness of the soil around the embedded wind turbine, operating as a constraint?
I'm trying to design a flange for a wind turbine tower. I wanted to check whether the flange would fail. but I didn't know how to calculate the Plastic limiting moment of tubular section MPL,3.
It would make my essay easier to find information about this airfoil.
Thank you anyway!
#naca #aviation #engineering #airfoils #pilots #2430 #information #wind turbine #CFD
Why don't physicists promote the mixture of solar panels that work maximally half of the day and wind turbines that spoil the horizon and collapse after thirty years in a dangerous and difficult-to-repair way by sun-meadows full of a mixture of solar panels and wind turbines that are not higher than a few meters, work twenty-four hours, do not collapse dangerously and can easily be repaired or replaced? These meadows do not spoil the horizon and can provide human communities with sufficient energy to live without worsening the climate. Even individual houses or complete streets can mix their solar panels with short wind turbines that can deliver several kilowatts per sunny or windy hour. Take a look at windy.com.
I am working on a small wind turbine as part of my internship for my course. The rated capacity of the small wind turbine is 700 watts at a rated wind speed of (…) m/s. The turbine is installed on a (height of the pole) m- steel pole/ tower. Further, the turbine is connected to the local electricity grid.
Challenges faced: At 3 m/s- windspeed, I am observing that the connected sensors/ electronics are consuming 15W
I am looking to design and further running simulations and analyse a low speed shaft of a typical wind turbine. What should be the optimal shaft diameter and length for a given torque and rotational speed requirement in a transmission system of a wind turbine. Do you recommend any good software to run FEA simulations for validation analysis purposes.
Any suggestion, I will much appreciate.
I am looking to design and further running simulations and analyse a low speed shaft of a typical wind turbine. In particular I am looking to design the shaft diameter and length and any other connection components such bearings, keys and so on, for a given torque and rotational speed requirement in a transmission system of a wind turbine. Do you recommend any good software to run FEA simulations for validation analysis purposes.
Any suggestions or comments, I will much appreciate.
I am investigating the open jets of small wind tunnels and the study of small scale wind turbines and need to know how to calculate the distance "x" where the jet flow manages to flood the machine.
Why don't physicists promote the mixture of solar panels that work maximally half of the day and wind turbines that spoil the horizon and collapse after thirty years in a dangerous and difficult-to-repair way by sun-meadows full of a mixture of solar panels and wind turbines that are not higher than a few meters, work twenty-four hours, do not collapse dangerously and can easily be repaired or replaced? These meadows do not spoil the horizon and can provide human communities with sufficient energy to live without worsening the climate. Even individual houses or complete streets can mix their solar panels with short wind turbines that can deliver several kilowatts per sunny or windy hour. Take a look at windy.com.
Is there any comprehensive review on types of vertical wind turbines?
What are the laws, regulations, zoning guidelines, etc., for preventing negative impacts of noise coming from infrastructure, especially renewable energy? Some countries have more lax environmental regulations for renewable energy, others are missing any reference to this issue because these technologies are relatively new or perceived as relatively harmless (in comparison to non-renewable energy).
I have written a review on Wind Turbine Noise effects on wildlife and the planning regulations and guidelines (and lack thereof) in Germany, California, and Israel, and looking for additional cases and countries, including photovoltaic energy impacts.
Attaching the article if it helps some of you who are interested in the field (open access). The title is: "Noise pollution from wind turbines and its effects on wildlife: A cross-national analysis of current policies and planning regulations".
In MATLAB simulation model of DFIG grid tied system, why after starting the DFIG, the torque produced by the wind turbine DFIG increases and the rotor speed decreases and why it is not coming under steady state? What is this phenomena called?
Hello Researchers,
I want to design controller for PMSG Wind turbine that works satisfactorily while operating in High Speed region, probably more than 20m/s wind speed. Kindly suggest me controller, I should use to give good performance?
Thanks in Advance
I made this hybrid power plant simulation with HOMER where I assumed the solar power plant system doesn't have enough irradiation so it can't produce any power and it's just the wind power plant system that worked. It turned out that the result is the consumption power (AC Primary Load) is bigger than the power generated by the wind turbine. Is it okay? How do I solve this problem?

I want to perform fatigue analysis of a wind turbine blade and I want to model a real wind turbine. Are there any related materials that can help with detail modeling?
How to obtain the dynamic equation of the power system consisting of synchronous generator, a step up transformer, a series compensated transmission line and a wind turbine DFIG, in which the synchronous generator acts as a source delivering real power, and wind turbine DFIG acts as a load consuming real power ?
I have witnessed that higher values of TI lead to a decay in the Ct curves in the moderate range of wind speed (8-13 m/s). For high wind speeds it is seen that the changing TI does not have an impact on the curves but it does for moderate wind speeds. I've been trying to find a response for that, but it is not clear at all.
I came with the following explanation, but I am not sure if it is correct. The variation of the thrust coefficient is directly related to the variation of the thrust force. According to the Newton’s second law, the aerodynamic forces are associated with the change in momentum of the fluid with time. This is equivalent to the mass times the velocity of the fluid. Then, the density depends on the mass airflow, that means a higher value of air density contains additional mass, which lead to a greater thrust force
So imagine modelling a viable design of a fixed-speed wind energy conversion system (WECS) for remotely located geographical areas without grid connection using Simulink. The 3-phase WECS should consist of a wound-rotor diesel synchronous generator, a wind turbine induction generator with shunt reactive power compensation, and 3-phase customer loads to be supplied at constant voltage and frequency over the entire wind speed range of [5,12] m/s. The power system to be designed should be initially operated in steady state supplying the main 50 kW load only, with an additional 50 kW load being subsequently switched on by closing the circuit breaker. so we are to analyse the system transient response to this step load change by computer simulations making the relevant conclusions/observations from the results obtained.
I'm currently working on my project which is 'Aerodynamic Analysis and design of airfoils for wind turbines. I'd really appreciate if anyone could help me with finding new airfoils.
Is there a law or method that determines the division of the outer domain surrounding the rotating domain of wind turbines into multi sections in Ansys, as well as choosing the position of the rotating domain inside it as shown in the pictures

Do we need man-made wind turbines everywhere? Can’t we utilize nature-made trees to harvest wind energy?
Hello. Does anyone know why the torque of bipale wind turbine optimized with the gradient method doesn't start from zero. Thank you for your answers.
Hello, I have a real problem statement from wind industry. Does, anyone suggest the solution.
We have power converters for 2-3MW wind turbine and their failures are a cause of concern, I know there is peak wind season is going on which may be the one of the reason of failures.
Can anyone suggest the other causes of failures and possible solutions? Please share if any case study available in public domain.
I am micro-siting wind turbines in WAsP.
I need to optimize the layout obtained after micro-siting using open-source optimization software.
hello all,
I am currently working on studying the effect of integrating wind energy on the IEEE 9 BUS using Matlab Simulink, the curve of voltage and frequency in the buss gave satisfactory results without wind, but after integrating the wind turbine, the voltage and the frequency diverged from the default value.
so I wanted to as if there is someone here that simulated similar work and can help me to clarify some questions.
- Any recommendations for optimal integration of wind energy into the grid? ( with Simulink Matlab ) , references?
Thank you.
Who has a simulation model of a wind turbine based on a dual-fed asynchronous generator for high power?
Who has a simulation model of a wind turbine based on a dual-fed asynchronous generator for high power that takes into account grid-side power converter control and generator-side power converter control?
my turbine is a variable speed wind turbine.
Hi guys, I am simulating a horizontal axis small scale wind turbine using Ansys Fluent. In order to validate the manufacturing data, I vary the wind speed and its corresponded angular velocity, but unfortunately the obtained results exceeds the experimental ones especially in high wind speeds (15m/s). According to the wind turbine manufacturer the turbine have a pitch control system, but there is no information about the used pitch angle in the experimental results. What must I do in this case? Can I choose the pitch angle that gives the same results as experimental ones ?
Thank you.
Hello everyone, I am working on the aerodynamics of blades of a Horizontal axis wind turbine .I want to know how to pick the best airfoils along the blade studied . for example if I have a 100 kw wind turbine and i would like to mixt 4 different airfoils in my blade , how do i know the type of those airfoils , and thier orde along the blade ?
Why Are Wind Turbines Built In Rural Locations Instead Of In Cities Where The Energy Is Used?
Dear contacts , can you recommend any references or papers in topic related to structural analysis of floating offshore wind turbine .
I did a calculation of the output power of VAWT with the following equation:
[Available output power]=([density of air]*[Swept area of blades]*[wind speed]^3)/2
[Real output power]=[Available output power]*[wind turbine efficiency]
I achieved some values, but I am not sure if it is the right way to calculate the output power.
According to VAWTs on market such as Makemu EOLO 3000, the output power is achieving 2kW at 8m/s which is 10 times bigger than my calculation, on the other hand, the output of EOLO 3000 was achieving more than the [Available output power]. Is there any other way to calculate the output power of VAWT?
Hi ,
I have transient CFD of a rotating Vertical Axis Wind Turbine. The torque changes with the rotation angle theta, I wish to obtain a plot of torque against azimuth angle as attached below and other properties as well. I am currently unsure how to do this as I can only do a standard XY plot on Ansys.

Hi,
I have been looking at the La Haute Borne wind farm data for my research. The data descriptions are given here:
As a CFD guy, I'm not well-informed about the wind turbine controls and nomenclature, and I was not able to find a reference manual for the said turbine (Senvion MM82) yet. Hence any help with the following questions will be well appreciated:
1. Is there a global standard for direction readings? For instance, are parameters like "Absolute_wind_direction" and "Nacelle_angle" measured zero for north (true or magnetic?), or east, or a pre-defined direction? This page (https://www.eol.ucar.edu/content/wind-direction-quick-reference) defines CW as positive (north:0deg, east:90deg ...), should I assume this for the said turbine?
2. Let us assume 0 means north, this means that 0 indicates a northerly (blowing from north to south) wind, right?
3. What does "corrected" indicate for these parameters exactly in that regard?
Some of the questions might sound silly :) But I don't know if those definitions are standard for all turbines, so I thought that referring to another turbine's descriptions or making assumptions might have misled me.
Thanks in advance,
Hüseyin
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