Carlos Couder CastañedaCentro de Desarrollo Aeroespacial · 3000
Carlos Couder Castañeda
PhD
About
55
Publications
19,353
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247
Citations
Citations since 2017
Introduction
Additional affiliations
January 2015 - December 2015
January 2014 - November 2014
Education
January 2009 - December 2009
Université de Pau et des pays de l'Adour
Field of study
September 2004 - September 2008
August 2000 - August 2002
CENTRO DE INVESTIGACION EN COMPUTACION
Field of study
Publications
Publications (55)
During the dry season of the years 2016–2020, the Gallinas River in San Luis Potosí State, Mexico, experienced a completeoss of its downstream flow. These events impacted the Tamul waterfall, a tourist attraction with economicosses for the region. To investigate the causes, this research focuses on identifying the flow variations in different river...
Although GPUs can offer higher computing power at low power consumption, their low-level programming can be relatively complex and consume programming time. For this reason, directive-based alternatives such as OpenACC could be used to specify high-level parallelism without original code modification, giving very accurate results. Nevertheless, in...
The use of CubeSats promises several advantages within a low economical budget margin for different missions. Nowadays, data transfer through optical channels (lasercom) is considered a potential technology for satellite wireless communications, providing several advantages in terms of data transfer rate with lower energy consumption. However, a ma...
Water scarcity is estimated to be a significant threat to societies worldwide, such as food shortages and hygiene problems. In 2016-2020, during the dry season, the Gallinas River in San Luis Potosí State, Mexico, experienced a complete loss of its downstream flow. These events severely impacted the locality’s economy and never registered before. C...
In recent years the increasing necessity to speed up the execution of numerical algorithms has leaded researchers to the use of co-processors and graphic cards such as the NVIDIA GPU’s. Despite CUDA C meta-language was introduced to facilitate the development of general purpose-applications, the solution to the common question: How to allocate (cud...
Sanitary and industrial wastewater discharged into rivers, is a general problem that occurs in most of the world and Mexico is not the exception, the main goal of this research is to determine based on simulations of pollutants concentrations, the assimilation capacity of the Gallinas River against discharges of agricultural and industrial wastewat...
![CubeSat actuators advantages and disadvantages [15, 16, 17].](profile/Jorge_H/publication/350165409/figure/tbl1/AS:1004280655904770@1616450575524/CubeSat-actuators-advantages-and-disadvantages-15-16-17_Q320.jpg)
CubeSat technology is a low-cost alternative for space research in universities worldwide, promoting research areas in tele-detection, Earth and space observation, telecommunications, meteorology, etc. In this sense, Attitude and Determination Control Subsystem (ADCS) plays a key role in order to achieve a fast and precise orientation of the satell...
Up to now, CubeSat nano-satellites have strong limitations in communication data rates (∼ 100 kbps) and bandwidth due to the strictness of CubeSat standard. However, if they could be endowed with optical communications (data rates up to 1 Gbps in optimal state), CubeSat applications would exponentially increase. Nonetheless, laser communications fa...
Low-cost options to provide local transactional network coverage are LPWAN (Low Power Wide Area Network), which are simpler to implement and to manage. The emerging technology known as LoRaWAN represents a promising LPWAN option due to its relative long range, as well as the technological development opportunities given its recent introduction and...
![Depth mineral volume fractions profile computed by LLSI method [left]...](publication/345321030/figure/fig3/AS:959984670105607@1605889589860/Depth-mineral-volume-fractions-profile-computed-by-LLSI-method-left-and-SC-method_Q320.jpg)
This work presents a non-linear Self-Consistent (SC) micromechanics method to model the observed physical elastic properties of a terrigenous formation with the purpose to obtain its depth mineral volume fractions profile. In this approach, it is first assumed that the observed physical elastic properties obtained from well logs, such as the densit...
Potential-field-data imaging of complex geological features in deepwater salt-tectonic regions in the Gulf of Mexico remains an open active research field. There is still a lack of resolution in seismic imaging methods below and in the surroundings of allochthonous salt bodies. In this work, we present a novel three-dimensional potential-field-data...
Electrochemical electrodes comprise multiple phenomena at different scales. Several works have tried to model such phenomena using statistical techniques. This paper proposes a novel process to work with reduced size images to reconstruct microstructures with the Simulated Annealing method. Later, using the Finite Volume Method, it is verified the...
Nowadays, remote sensing data taken from artificial satellites require high space communications bandwidths as well as high computational processing burdens due to the vertiginous development and specialisation of on-board payloads specifically designed for remote sensing purposes. Nevertheless, these factors become a severe problem when considerin...
Global warming is a real threat for the survival of life on Earth in the following 80 years. The effects of Global Warming are particularly harmful for inhabitants of very saturated urban settlements, which is the case of Mexico City. In this work, we analyse temperature time series from Mexico City Downtown, taken hourly between 1986 and 2019. The...
Climate change has unchained several natural extreme phenomena, including a major frequency and intensity of flooding episodes. From these, the ones of greatest importance are those which endanger human settlements as well as socioeconomic activities. This is the case of Tamuín city, settled in the shore of Tampaón River, in Mexico. In this work, w...
Considering the continuous increase of demands in satellite communications, it is imperative to determine systems with higher bandwidths. Furthermore, miniaturization trends coming from the development of nanosatellites as CubeSat’s, constitute great restrictions to their design. Optical communications have the potential to lead with current data r...
This paper describes the development of a two-dimensional water quality model that solves hydrodynamic equations tied to transport equations with reactions mechanisms inherent in the processes. This enables us to perform an accurate assessment of the pollution in a coastal ecosystem. The model was developed with data drawn from the ecosystem found...
The collision frequencies between electrons and air molecules are important parameters when analyzing electrical breakdown. Different values for the collision frequency in atmospheric air have been reported in academic literature; the current analysis method for breakdown in waveguides and filters consider an electric field independent term. Howeve...
Deployable mechanisms in CubeSat satellites have many problems with the system that provides the anchor position. The main defect of the traditional deployment mechanisms for solar panels in CubeSat’s is the lack of position system to block the back-driving of the panel when it reaches the final phase of the deployment. This generates spurious osci...
![Point-ahead/look-behind angle as a function of relative velocity [6].](profile/Jorge_H/publication/327103368/figure/fig1/AS:1086478717325313@1636048120176/Point-ahead-look-behind-angle-as-a-function-of-relative-velocity-6_Q320.jpg)
In this work we develop a mathematical model to estimate the error for inverse kinematics problem for Gough-Stewart parallel mechanisms. We propose the estimation error method to include manufacture, assembly, backlash and sensoring errors. We provide the error transmission matrices for the length of each leg of the hexapod, which permits to evalua...
The aim of this article was to report the carbon nanofoam synthesis by a new method and a new catalytic mixture. Using the pulsed electric arc discharge method, carbon nanofoam was synthesized. The synthesis was carried out in a controlled atmosphere at 200 torr of hydrogen pressure. The pulsed electric arc discharge was established between two gra...
El estudio de la formación y la evolución de las galaxias re-quiere de la medición de sus parámetros morfológicos. Tradicionalmente, el análisis morfológico se ha llevado a cabo principalmente a través de la extracción y selección de características, o mediante la inspección visual de expertos en un proceso que consume muchos recursos y que resulta...
The unexpected bronze medal of Usain Bolt in the 100 m final sprint at London 2017 is of great interest from the physical point of view. In Hernández-Gómez et al. [2017], we applied our successful analytic mechanical model [Hernández-Gómez et al., 2013] to trace Usain Bolt from Beijing 2008 to Rio 2016 in order to assess the impact of runner's mass...
FDTD method opened a fertile research area on the numerical analysis of electromagnetic phenomena under a wide range of media and propagation conditions, providing a richful analysis of electromagnetic behaviour like propagation , reflection, refraction, multi-trajectory phenomena, among others. In this paper we present an optimised FDTD-CPML algor...
This paper describes the development of a two-dimensional water quality model that solves hydrodynamic equations tied to transport equations with reactions mechanisms inherent in the processes. This enable us to perform an accurate assessment of the pollution in a coastal ecosystem. The model was developed with data drawn from the ecosystem found i...
The unexpected bronze medal of Usain Bolt in the 100 m final sprint at London 2017 is of great interest from the physical point of view. In Hernández-Gómez et al. [2017], we applied our successful analytic mechanical model [Hernández-Gómez et al., 2013] to trace Usain Bolt from Beijing 2008 to Rio 2016 in order to assess the impact of runner’s mass...
Numerical estimation of Lyapunov exponents in non-linear dynamical systems results in a very high computational cost. This is due to the large-scale computational cost of several Runge-Kutta problems that need to be calculated. In this work we introduce a parallel implementation based on MPI (Message Passing Interface) for the calculation of the Ly...
Despite the impressiveness of the sprints performed by Usain Bolt, the question of why he has not been able to break his own 100 m sprint world record, set at Berlin (2009), naturally arises. In this paper, we address such a query by considering the conditions of Usain Bolt and the circumstances prevailing at the sprints that took place in Beijing...
The effects of high-energy particles coming from the Sun in human health as well as in the integrity of outer space electronics make prediction of periods of high solar activity a task of significant importance. Since periodicities in solar indexes have been identified, long-term predictions can be achieved. In this paper, we present a method based...
Nowadays, genetic algorithms stand out for airfoil optimisation, due to the virtues of mutation and crossing-over techniques. In this work we propose a genetic algorithm with arithmetic crossover rules. The optimisation criteria are taken to be the maximisation of both aerodynamic efficiency and lift coefficient, while minimising drag coefficient....
In this work a fast computational particles tracer model is developed based on Particle-In-Cell method to estimate the sediment transport in the access zone of a river port area. To apply the particles tracer method, first it is necessary to calculate the hydrodynamic fields of the study zone to determine the velocity fields in the three directions...
Full finite differences time domain (FDTD) method is implemented using a WiFi Access Point into common office environment at 2.45 GHz. The model allows observing the electromagnetic phenomena when the wave impignes over typical objects. FDTD results has been obtained demonstrate good concordance with measurements at different heights. © 2016 Wiley...
Radiometry of earth's gravity (gravity gradiometry) and gravimetry have become key tools to perform reconstructions of geological strata in the upper earth's crumble. In several locations, it is being intensely used to locate unknown oil reservoirs by determining the gravity anomalies produced by salt bodies. Nevertheless, in most cases, gradiometr...
Los efectos de las partículas ultra-energéticas provenientes del sol en la salud humana así como en la ingtegridad de equipo electronico espacial, hacen de la predicción de periodos de alta actividad solar una tarea de gran importancia. Dado que se han encontrado periodicidades en los registros solares, se pueden lograr predicciones a largo plazo....
We present a novel approach to automated volume extraction in seismic data and apply it to the detection of allochthonous salt bodies. Using a genetic algorithm, we determine the optimal size of volume elements that statistically, according to the U-test, best characterize the contrast between the textures inside and outside of the salt bodies thro...
We present a three-dimensional (3D) gravity modeling and inversion approach and its application to complex geological settings characterized by several allochthonous salt bodies embedded in terrigenous sediments. Synthetic gravity data were computed for 3D forward modeling of salt bodies interpreted from Prestack Depth Migration (PSDM) seismic imag...
Se presenta la modelación numérica computacional de la hidrodinámica superficial e hidrológica de la zona de estudio donde se pretende construir infraestructura para la exploración de hidrocarburos en las márgenes del río Grijalva, México; para ello se muestra el análisis de la información meteorológica, determinando los valores de intensidad de pr...
In this work, a serial source code for simulating a supersonic ejector flow is accelerated using parallelization based on OpenMP and OpenACC directives. The purpose is to reduce the development costs and to simplify the maintenance of the application due to the complexity of the FORTRAN source code. OpenMP has become the programming standard for sc...
With at least 60 processing cores, the Xeon-Phi coprocessor is a truly multicore architecture, which consists of an interconnection speed among cores of 240GB/s, two levels of cache memory, a theoretical performance of 1.01 Tflops, and programming flexibility, all making the Xeon-Phi an excellent coprocessor for parallelizing applications that seek...
This work focuses on the evolution of a free plane laminar jet in the near-nozzle region. The jet is buoyant because it is driven by a continuous addition of both buoyancy and momentum at the source. Buoyancy is given by a temperature difference between the jet and the environment. To study the jet evolution, numerical simulations were performed fo...
The computational numerical modeling of the surface hydrodynamics and hydrology of the study area is presented, where the construction of infrastructure to explore hydrocarbons is planned on the banks of the Grijalva River, Mexico. Meteorological information is analyzed to determine precipitation intensity, temperatures, evaporation and flows for t...
A numerical research with different turbulence models for shallow water equations was carried out. This was done in order to investigate which model has the ability to reproduce more accurately the wakes produced by the shock of the water hitting a submerged island inside a canal. The study of this phenomenon is
important for the numerical methods...
This work focuses on the effects of vegetation on a fluid flow pattern. In this numerical research, we verify the applicability of a simpler turbulence model than the commonly used k-epsilon model to predict the mean flow through vegetation. The novel characteristic of this turbulence model is that the horizontal mixing-length is explicitly calcula...
The analytic solution of the gravimetric tensor components, making use of the gravitational potential equation for a three-dimensional volumetric assembly composed of unit prisms of constant density, demands a high computational cost. This is due to the gravitational potential of each one of these prisms must be calculated for all of the points of...
This work contributes to the study of nuclear plant thermal discharges in coastal areas by using a numerical model which solves the Navier-Stokes-Reynolds equations for shallow waters and the energy equation for computing temperature variations. The numerical model takes into account the heat flux given in the upper layer, where the free surface an...
An implementation with the CUDA technology in a single and in several graphics processing units (GPUs) is presented for the calculation of the forward modeling of gravitational fields from a tridimensional volumetric ensemble composed by unitary prisms of constant density. We compared the performance results obtained with the GPUs against a previou...
We develop a numerical model based on the mild-slope equation of water wave propagation over complex bathymetrys, taking into account the combined effects of refraction, diffraction and reflection due to protection structures. The numerical method was developed using a split proposed version of the mild-slope equation in elliptical
form and solved...
We develop an unsplit convolutional perfectly matched layer (CPML) technique to absorb efficiently compressible viscous flows and their related supersonic or subsonic regimes at the outer boundary of a distorted computational domain. More particularly subsonic outgoing flows or subsonic wall-boundary layers close to the PML are well absorbed, which...
A numerical model based on the mild-slope equation of water wave propagation over complicated bathymetry, taking into account the combined effects of refraction, diffraction, and reflection due to breakwater, is presented. The
numerical method was developed using a split proposed version of the mild-slope equation and solved by an implicit method i...
![Figure 12.4. Bathymetry (Laurel and Cruz [8]).](profile/Carlos-Couder-Castaneda/publication/202422341/figure/fig3/AS:393994812051460@1470947091867/Bathymetry-Laurel-and-Cruz-8_Q320.jpg)
The wave phenomena in the marine environment has been studied separately or combined with researching objectives and for the solution to specific engineering problems. These problems vary from the design of simple coastal structures such as submerged obstacles, to more complex structures such as breakwaters, pipelines, harbors, etc. This involves m...
The ejectors are used commonly to extract gases in the petroleum industry where it is not possible to use an electric bomb due the explosion risk because the gases are flammable. The steam ejector is important in
creating and holding a vacuum system. The goal of this job is to develop an object oriented parallel numerical code to investigate the un...
The estuarine zone is an area of strong interaction between fresh and salty water. Dynamics in these areas is complex due to the interaction of the forcing mechanisms such as wind, tides, local coastal currents and river discharges. The difference of density between fresh water and salted water causes the formation of the buoyant plumes which have...
Projects
Projects (13)
ICASST 2022 is a scientific forum for the dissemination of basic research and/or technological development projects, which allows interaction between professionals, academics and industrialists, promoting scientific-technological collaborations in the aerospace field and related areas. The program includes oral and mural (poster)
presentations, keynote lectures given by widely recognized national and international experts in their area, as well as courses/workshops. The conference will be held in a hybrid way, face-to-face/virtual.
ICASST 2022 will be held at the facilities of Centro de Desarrollo Aeroespacial, Instituto Politécnico Nacional, in the historical center of Mexico City, Mexico. The face-to-face modality will take place as long as sanitary conditions allow it.
To foster the introduction and applicaiton of Artificial Intelligence to solve fundamental problems in Science and Technology