Younes Menni

Younes Menni
University Center Salhi Ahmed Naama

Doctor of Education

About

202
Publications
46,716
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2,255
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Introduction
Skills and Expertise

Publications

Publications (202)
Article
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This work aims to find the optimum value of blade height ratio (R) for improving mixing performance and energy consumption of a Triple-Blade Concentric Double-Helix Static Mixer. In this study, mixing of two fluids at different concentrations subjected to laminar flow conditions is numerically analyzed by using finite element-based Computational Fl...
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This work investigates the effect of a number of perforated fin configurations on the convective flow characteristics within a heated trapezoidal channel. By improving the flow characteristics, pressure distribution, velocity profiles, and temperature patterns, it is intended to investigate optimum performance by using different geometrical fin des...
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In this work, we will investigate structural, electronic, magnetic, and thermodynamic properties using density functional theory (DFT) and the quasi-harmonic Debye model. We consider ferromagnetic (FM) and non-magnetic (NM) states for L2 1 and Hg 2 CuTi-type crystal structures. The best stability is obtained for ferromagnetic Rh 2 MnGa in a Cu 2 Mn...
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This study improves earth–air heat exchanger (EAHE) outlet temperature forecasting using artificial neural networks (ANNs) to enhance building energy efficiency. Leveraging data from Bechar, Algeria, an arid climate, a FFBPNN with one hidden layer was trained, validated, and tested. Increasing the number of neurons in the hidden layer significantly...
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The prevalence of air conditioners (ACs) in regions with hot and arid climates raises significant health concerns for users. This study investigates the impact of AC usage on health and indoor air quality in Kenadsa, Bechar, located in southwest Algeria. A questionnaire survey was conducted among 300 residents to identify symptoms associated with A...
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Environmental and energy sustainability concerns have catalyzed a global transition toward renewable biofuel alternatives. Among these, biodiesel stands out as a promising substitute for conventional diesel in compression-ignition engines, providing compatibility without requiring modifications to engine design. A comprehensive understanding of bio...
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The mixing performance of non-Newtonian fluids is critical in various industrial processes, directly impacting efficiency and product quality. This study investigates the mixing behavior of Xanthan Gum solutions, a widely used non-Newtonian fluid, compared to water using different injection techniques. Comprehensive flow visualization, wall shear s...
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This study presents a numerical investigation of turbulent crude oil flows in circular curved pipelines, with a focus on the deposition patterns of solid particles within the fluid. Simulations were conducted using the Reynolds–Averaged Navier–Stokes equations coupled with the k–ε turbulence model to examine the influence of structural characterist...
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This study aims to develop an effective method for predicting the temperature and torque of Permanent Magnet Synchronous Motors (PMSMs) using deep learning techniques, which is crucial for optimizing motor performance and ensuring longevity, particularly in the automotive industry. Various Neural Network (NN) architectures, including a Recurrent Ne...
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This study presents an investigation into forced convection within laminar fluid flow through a configuration consisting of two heated cubic obstacles with circular perforations, arranged in a staggered pattern on a horizontal plate. The research addresses the critical challenge of enhancing heat transfer in such configurations by examining the inf...
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This study delves into the convective heat transfer phenomena within a square cavity that houses a porous medium, analyzing the effects of Darcy (Da) and Rayleigh (Ra) numbers on the thermal and fluid dynamic behavior within the system. Utilizing a combination of computational fluid dynamics (CFD) and the finite element method (FEM), the research f...
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This study addresses the challenge of mitigating electromagnetic interference (EMI) in telecommunications and radar systems by designing, simulating, and experimentally validating a wideband flexible metamaterial absorber (MMA) for gigahertz-frequency electromagnetic waves (EMWs). EMI is critical as it can severely impact the performance and reliab...
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HIGHLIGHTS • Addressing the need for precise solar energy prediction for efficient power system planning and renewable energy integration. • Evaluated six machine learning models using data from the Abiod Sid Cheikh solar station in southern Algeria. • R 2 (0.591-0.996 kW/m 2), RMSE (0.510-1.78 kW/m 2), MAE (0.357-0.856 kW/m 2), and Adj-R analyzed...
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This paper introduces an active fault-tolerant control system designed to effectively detect and mitigate inter-turn short-circuit (ITSC) faults in asynchronous machines. Utilizing the extended Kalman filter, the system precisely estimates electrical parameters, including resistances and inductances, crucial for identifying such faults. By integrat...
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Heat exchangers (HEs) play a critical role in numerous industrial and engineering applications by facilitating efficient thermal energy transfer. In the pursuit of enhancing the performance of such systems, this study focuses on the hydrodynamic effects of two distinctive vortex generators (VGs) within a turbulent airflow channel, operating under s...
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_This research delves into the decomposition kinetics of propylene oxide within a novel reactor design characterized by a corrugated inner wall for enhanced cooling. By applying Computational Fluid Dynamics (CFD), this study aims to optimize the reactor's heat transfer capabilities to achieve precise control over the exothermic decomposition proces...
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The effectiveness of triangular baffles in enhancing heat transfer within corrugated tubes is examined numerically in this study. Two key parameters influencing performance are examined: baffle placement (staggered and aligned) and their angles of attack (0°, 15°, 30°, and 45°). Heat transfer, friction, as well as performance metrics are comprehens...
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Understanding the mechanical and rupture behavior of orthopedic cement fixing the cup of a total hip prosthesis (THP) to cortical bone is crucial for comprehending the conditions governing prosthesis stability and potential loosening. Consequently, this study employs a three-dimensional finite element method to investigate the mechanical behavior o...
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This paper presents a comprehensive model of hemodynamic pulsatile flow within the carotid artery, examining both normal conditions and those affected by stenosis. The primary focus lies in visualizing shear stress along the inner walls, aiming to elucidate how stenosis alters blood flow characteristics and subsequently impacts plaque deposition. U...
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The study analyzes the unique behavior of two-phase flows when incorporating nanofluids containing aluminum trioxide (Al2O3) and copper (Cu) nanoparticles in a vertical channel. The main goal is to investigate the behavior of air-nanofluid mixtures in this setting, with potential implications for industrial and exploration applications. Research in...
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This paper presents a theoretical exploration of the electronic, structural, and mechanical attributes inherent in three rare-earth-free intermetallic compounds, namely, MnTi, MnZr, and MnHf. Employing density functional theory (DFT) calculations with the Implementation of projector augmented wave (PAW); our investigation adopts the supercell appro...
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Static mixers with low-pressure drops have been used for mixing in many biomedical and chemical applications. This study evaluates fluid flow with hydrothermal mass transfer in two types of vortex generators in a rectangular channel. The pressure drops in this new three-dimensional model were meager for Reynolds numbers of 50, 100, and 150. The ext...
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The objective of this investigation is to assess the effect of obstacles on numerical heat transfer and fluid flow momentum in a rectangular microchannel (MC). Two distinct configurations were studied: one without obstacles and the other with alternating obstacles placed on the upper and lower walls. The research utilized the thermal lattice Boltzm...
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This paper presents a comprehensive analysis of the dynamic and thermal behavior of air-flow within a heat exchanger equipped with two distinctive baffles: a perforated baffle and a partially inclined baffle. The influence of hole positioning in the perforated baffle on the overall performance of the heat exchanger is thoroughly investigated throug...
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Numerical simulations, based on relatively complex physical models developed for CFD, can accurately predict engine-out responses, but they require huge memory space and/or computation time. In terms of resources and computer time, artificial intelligence methodologies are more cost-effective. In this work, we used an ANN to predict the performance...
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Static mixers are vital for continuous processes, improving product quality, reducing costs, and enhancing efficiency. This study numerically investigates the mixing performance of various geometry configurations in static mixers. A corrugated tube with baffle inserts arranged in a triangular pattern is used. These studies are carried out using the...
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Original scientific paper https://doi.org/10.2298/TSCI2304251T In this study, the coldest days of 2022 in the Djelfa region, Algeria, were determined using astronomical and climatic data. The timing of sunrise, sunset, and duration of sunlight, as well as changes in solar radiation intensity and air temperature, were analyzed. By converting solar r...
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This research paper presents a highly significant study on a new type of static mixer, using advanced numerical simulations to assess its mixing efficiency. The mixer's unique T-shaped design with a spherical mixing chamber and side entrances deviates from traditional designs, resulting in smooth fluid-flow and reduced risk of blockages. The mixer...
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This research paper presents an investigation into the behavior of rarefied flow and heat transfer in a rectangular microchannel utilizing a Cu-water nanofluid. The study employs the thermal lattice Boltzmann method (LBM) with a lattice featuring a double distribution function and a BGK collision model. The simulations are performed using Python so...
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The conditioning of living and working spaces in the building sector consumes a significant amount of energy. Among the natural ventilation techniques that rely on renewable energy sources such as geothermal and wind, wind towers and earth to air heat exchangers (EAHEs) hold prominence. This research paper presents a series of experiments conducted...
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n this work, the calculation was used to see the evolution of the maximum daily intensity of direct solar radiation, the duration of sunshine, and the maximum air temperature during the year in the regions of 'El Oued and Ghardaïa (Algeria). In order to choose the days when the values of these values are the lowest in each region, in order to study...
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As an example of green energy (geothermal energy), which has been the subject of advanced research in recent decades, the earth-to-air heat exchanger (EAHE) is the application of an air heat exchanger to soil temperatures, in which air circulates in tubes in thermal contact with the ground. The performance of the EAHE cooling system is evaluated at...
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The investigation of fluid flow and forced convective heat transfer in microchannels with square barriers is the focus of this study. The positioning of obstacles was varied in three cases: at the top wall, bottom wall, and symmetrically distributed on both sides of the microchannel wall. The thermal Lattice Boltzmann Method in conjunction with the...
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This article presents a study on condition monitoring and predictive maintenance, highlighting the importance of tracking ball bearing condition to estimate their Remaining Useful Life (RUL). The study proposes a methodology that combines three algorithms, namely Variational Mode Decomposition (VMD), Decision Tree (DT), and Extreme Learning Machine...
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This study explores the principle of producing cold through heat absorption at a temperature lower than ambient temperature, which requires the use of an endothermic mechanism. Specifically, the study focuses on evaluating multiple thermoelectric coolers using aluminum water heat exchangers as a means of validating a proposed correlation through a...
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A comprehensive comparative study utilizing HSE06 and GGA density functional calculations was conducted to investigate the impact of Li and Na doping, as well as their co-doping, on the physical properties of cuprous oxide (Cu 2 O). This study examined three possible structures, including substitution of Li, Na, and Li/Na for Cu, and interstitial L...
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This study aims to address the challenge of low-cost hardware implementation of a combined backstepping with fractional order PID (FOPID) controller for mobile robots in real-time applications. Moreover, this work proposes a self-designed mobile robot prototype that is easy to realize, low in cost, spares time, and reduces human effort. This robot...
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Static mixers are becoming increasingly popular because they are energy-efficient, cost-effective, and easy to maintain. Mixing is an essential unit operation in many chemical industries. In this study, a modified high efficiency vortex static mixer was used to examine laminar flows in a rectangular duct. To encourage fluid rotation and improve mix...
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In this piece, the impact of an obstacle's upstream edge inclination in a rectangular channel is investigated. The main purpose of this study is to give a better understanding of this associated phenomenon by reflecting more accurately the different cooling techniques and to get as close as possible to real conditions of use. This study is based on...
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The study is conducted around a heat exchanger, its channel is horizontal rect­angular, its upper wall is isothermal, while its lower wall is thermally insulated, containing extended surfaces in the form of triangular obstacles attached in a stag­gered manner periodically. Four models of the channel with various roughnesses were compared in this st...
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The study’s main objective is to assess a channel heat exchanger’s thermal and hydraulic characteristics in the presence of turbulent air-flow at a fixed Reynolds number. Using two distinct versions of the obstacles in terms of their shape, fix­ation, and arrangement, the baffles and fins are implanted inside the channel. To convert a conventional...
Article
The study is conducted around a heat exchanger, its channel is horizontal rect�angular, its upper wall is isothermal, while its lower wall is thermally insulated, containing extended surfaces in the form of triangular obstacles attached in a stag�gered manner periodically. Four models of the channel with various roughnesses were compared in this...
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Wireless sensor networks (WSNs) are attracting great interest from a large research community. The main function of these types of networks is their ability to collect physical data from a given environment such as temperature, humidity and light, etc. They are mainly designed for low-power embedded communications. One of the most felt drawbacks of...
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The urban heat island (UHI) is a physical climatic phenomenon, its effects in the built-up areas can be observed in terms of air temperatures above the atmosphere, as well as in terms of thermal comfort under the urban canopy. This study aims to carry out a diurnal characterization of the atmospheric urban heat island over the agglomeration of Guel...
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In the current study, cross-temperature and concentration gradients are used to model the in a binary fluid contained in an angled square cavity. Using a method, the , , and conservation equations were numerically solved. The inclined cavity under equal solutal buoyancy and thermal forces was the subject of the study . Since the horizontal componen...
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With the increase of heat transfer problems in marine vehicles and submerged power stations in oceans, the search for an efficient finned-tube heat exchanger has become particularly important. The purpose of the present investigation is to analyze and compare the thermal exchange and flow characteristics between five different fin designs, namely:...
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Original scientific paper https://doi.org/10.2298/TSCI22S1485D In this study, numerical studies to clarify the influence of wave number and amplitude on thermal-flow behavior of wavy annular finned-and-tube heat exchang-ers are described. For a range of Reynolds number from 4400 to 14300, the influence of wave amplitude, 1.5 £ A £ 4.5 mm, and wave...
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This research paper explores the potential of passive heating and cooling strategies in buildings utilizing geothermal resources. The focus is on renewable energy solutions, including geothermal energy, solar systems, and Earth-to-air heat exchangers, with the aim of reducing energy consumption for cooling and heating loads. The investigation prima...
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This research is to incorporate three efficient ways that will increase the performance of baffled heat exchangers. The 1 st technique is represented by baffle perforating to create pores through which secondary streams pass in order to reduce main stream pressure on the flow areas. A 2 nd technique represented in redesigning the baffle structure b...
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The onset of non-linear convection in a horizontal porous layer saturated by a shear-thinning liquid is studied. The Carreau-Yasuda model is utilized for modeling the behavior of the working medium. Constant fluxes of heat and mass are imposed on the horizontal walls of the cavity, while the vertical sides are assumed adiabatic and impermeable. The...
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Cavitating Venturis are simple apparatus used as a flow meter over a broad range of mass-flow rates. The main objective of this work is to introduce obstacles in small-sized cavitating Venturis in order to increase their capacity by raising the critical pressure, i.e. widens the phase of the cavitating mode. Four configurations have been tested dep...
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This study investigates heat transfer phenomena in a building envelope in Bechar, Southwest Algeria, under arid climatic conditions. The meteorological station Energarid provides precise recordings of solar radiation and outdoor temperature. A calibrated model is used to analyze diurnal temperature variations. Wall temperatures exposed to solar rad...
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Natural gas, which is also referred to as eco-friendly fuel, is being seen as a potential solution to challenge the decline of crude oil resources and the deteriorating air quality in urban areas. This fuel has been verified to emit less CO, HC, and PM compared to other fuels. A potential approach to reducing NOx and soot emissions while also achie...
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This study aimed to investigate the thermal behavior of water flows in a solar collector equipped with zig-zag tubes. To achieve this, a numerical simulation using CFD was conducted, which is a powerful tool for analyzing fluid-flow and heat transfer. The simulation employed the finite volume method to discretize the fluid domain and the SIMPLE alg...
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The focus of this research is to investigate the heat transfer performance of a solar flat plate collector by utilizing CFD simulation. To accomplish this, a 3-D model of the collector with an air inlet was created using ANSYS Workbench, and the grid was generated through ANSYS ICEM, ANSYS FLUENT, and ANSYS CFX were then used to obtain comprehensiv...
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The increase in population growth rates led to a high rate of production and use of plastic materials, which created a problem in the collection and management of this waste [1]. This created severe threats to the environment and the ecosystem. The main objective of this paper is to conduct an experimental assessment of a direct diesel engine fuele...
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Located in the arid climatic zone of Algeria, the region of Ain Sefra is a victim of climatic change, which faces several geographical, ecological, economic, and even social problems. The present study investigated the relationships between various drought indices and the evolution of land use elements in Ain Sefra from 1977 to 2017 using the Modif...
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Bioclimatic design is a design process that takes into account climate and environmental conditions when designing for optimum thermal comfort with minimum outside energy use. The present study intends to highlight the role of the bioclimatic analysis in design operations at both, urban and architectural scale in Guelma city, Algeria. As our challe...
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This paper discusses the numerical simulation of the thermal behavior of steady-state water flows within parallel tubes in a plane solar collector. The CFD modeling technique, which is based on the finite volume method, has been implemented with the SIMPLE algorithm. The governing equations of the flow are those of Navier-Stokes, coupled with the e...
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Any alternating electric power supply is always characterized by three reference quantities, which are voltage, electric power and frequency. The generators of power stations are synchronous machines. The present work is based on the modelling of the synchronous machine for a study of the stability of the electricity transmission network. The examp...
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In this work, electrodeposition was used to produce thin zinc oxide layers on n-type silicon substrates. It has been investigated how annealing at 400∘C affects the deposit's morphological and structural characteristics. SEM, X-ray diffraction, and contact angle measurements have all been used to study the morphology and structure of nonannealed an...
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In the current study, natural convection is numerically simulated in a shallow, porous, square cavity that is filled with a non-Newtonian fluid. In terms of temperature and concentration gradients (heat and mass fluxes), the active wall was seen as uniform and constant, whereas the other walls are adiabatic and impermeable. To analyze the behavior...