Exploració per altres contribucions "Mellibovsky Elstein, Fernando"
Ara es mostren els items 1-20 de 26
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3D numerical simulation of a jet engine axial compression stage
(Universitat Politècnica de Catalunya, 2015-09-14)
Treball Final de Grau
Accés obertThe aim of this work is to undertake three-dimensional simulation of a compression stage of a jet engine axial compressor in order to study the air flow, assess blade performance at various working conditions, and validate ... -
Active flow control on cambered airfoils at ultralow Reynolds using synthetic jets
(Universitat Politècnica de Catalunya, 2017-09-21)
Treball Final de Grau
Accés obertActive flow control methods have been widely studied for more than a decade in order to improve the airfoil's efficiency. This study is focused on fluidic actuation (the addition or subtraction of momentum to/from the ... -
Aerodynamic analysis of the lift reducer device by flow transfer
(Universitat Politècnica de Catalunya, 2013-03-08)
Treball Final de Grau
Accés obertFrom the beginnings of aviation and aeronautical world in general, it has searched the goal of creating a machine capable of taking off in a controlled way trying to achieve the highest operational aircraft. Always looking ... -
Aerodynamic performance of a paraglider wing
(Universitat Politècnica de Catalunya, 2017-10-30)
Treball Final de Grau
Accés obertThe aim of this project is to carry out an aerodynamic performance analysis of a paraglider by using simulation computational programs with low time cost and computational requirements, but still effective approach obtaining ... -
Análisis de estabilidad Arnoldi de las ondas de Tollmien-Schlichting en fluidos viscosos
(Universitat Politècnica de Catalunya, 2017-07)
Treball Final de Grau
Accés obertEn este trabajo se estudia la estabilidad de las ondas Tollmien-Schlichting, que aparecen como una primera fase de la inestabilidad del flujo de Poiseuille plano como paso de laminar a turbulento. Se calcula la curva de ... -
Análisis del flujo de aire a través de un difusor de automóvil
(Universitat Politècnica de Catalunya, 2018-09-14)
Treball Final de Grau
Accés obertThe aim of this study was to optimise a car diffuser in order to reduce fuel consumption and improve grip performance in bends, thus achieving a higher cornering speed. The optimisation has been carried out using the ... -
Characterization of localized solutions of plane Poiseuille flow in very long domains
(Universitat Politècnica de Catalunya, 2016-05-24)
Treball Final de Grau
Accés obertThe aim of this Bachelor's Thesis is the study of a particular low-energy localized plane Poiseuille solution while minimizing the error introduced by the streamwise periodicity boundary condition. The fact that the ... -
Estudio de la aerodinámica de un coche de GT mediante CFD
(Universitat Politècnica de Catalunya, 2008-03-17)
Projecte/Treball Final de Carrera
Accés restringit per decisió de l'autorEste Trabajo ha consistido en hacer un estudio de simulación en dinámica de fluidos computacional (del ingles computational fluid dynamics, CFD) de un coche de carreras de Gran turismo (GT) con la finalidad de ver si ... -
Fluidic oscillators: decoupling amplitude and frequency
(Universitat Politècnica de Catalunya, 2018-09-14)
Projecte Final de Màster Oficial
Accés obertThe purpose of this thesis is to find a way to decouple the amplitude and the frequency of the oscillatory jet in the output of a fluidic oscillator by modifying a geometrical parameter and the Reynolds number, with the ... -
Gas turbine design & analysis tool: ducting components
(Universitat Politècnica de Catalunya, 2012-07-16)
Treball Final de Grau
Accés obertAquest projecte tracta de la modelització dels diferents components dels motors de turbines de gas per la posterior programació i simulació numèrica. Alhora, aquest forma part d‟un projecte més gran, l‟objectiu del qual ... -
Gas turbine design & analysis tool: heat transfer components
(Universitat Politècnica de Catalunya, 2012-07-16)
Treball Final de Grau
Accés obertEnglish:This work aims the modeling of different components that are part of or related to the transfer of heat (contribution, exchange or removal) from a gas turbine. All these modules have been developed in steps from ... -
Gas Turbine Design & Analysis Tool: Turbomachinery Components.
(Universitat Politècnica de Catalunya, 2012-07-16)
Treball Final de Grau
Accés obertEste proyecto se centra en la creación de un programa el cual ha de ser una herramienta de ayuda en el diseño y simulación de aplicaciones de motores de turbina de gas, permitiendo al usuario realizar los cálculos necesarios ... -
Hysteretical behaviour of a NACA 0012 airfoil at ultralow Reynolds upon variation of the angle of attack
(Universitat Politècnica de Catalunya, 2017-10-30)
Treball Final de Grau
Accés obertReynolds's low numbers studies are necessary to understand the physics surrounding aerodynamics in larger Reynolds numbers where the phenomena they appear are becoming increasingly complex and it is very necessary to use ... -
Instability mechanisms of fluidic oscillators
(Universitat Politècnica de Catalunya, 2017-09-15)
Treball Final de Grau
Accés obertIn this work, direct numerical simulation of the Navier-Stokes equations governing incom- pressible fluid flow has been employed to analyze the various flow topologies observed in a two-dimensional fluidic oscillator at ... -
Modular numerical tool for gas turbine simulation
(Universitat Politècnica de Catalunya, 2015-10-30)
Treball Final de Grau
Accés obertIn this work a free tool for the simulation of turboprops was implemented, capable of simulating the various components of a jet engine, separately or in conjunction, with different degrees of thermodynamic modelling or ... -
Multidisciplinary numerical analysis of detonation engines
(Universitat Politècnica de Catalunya, 2019-01-10)
Projecte Final de Màster Oficial
Accés restringit per decisió de l'autor
Realitzat a/amb: Von Karman Institute for Fluid dynamicsThe performance of pulse detonation engines (PDE) implies that they have to undergo very extreme cycles where the temperature may rise above 3000 K. The detonation principle, theoretically predicted by the ZND condition, ... -
Numerical investigation of Active Flow Control applied to an airfoil leading edge
(Universitat Politècnica de Catalunya, 2015-06-16)
Projecte Final de Màster Oficial
Accés obertObjectives: The major objective of the Master Thesis proposal is to perform 2D computational study and compare the enhancement in the global aerodynamic coefficients, mainly lift and drag coefficients, for cases of with ... -
Numerical study and optimization of a GT car Rear-Wing aerodynamics
(Universitat Politècnica de Catalunya, 2015-03-26)
Projecte Final de Màster Oficial
Accés obertThe same principle that allows an airplane to rise off the ground by creating lift from its wings is used upside-down to generate the downforce that pushes a race car against the surface of the track. This effect is sometimes ... -
Numerical study on aerodynamic drag reduction of passenger cars
(Universitat Politècnica de Catalunya, 2015-09-30)
Treball Final de Grau
Accés obertThe scope of this work is to identify potential improvements on Passenger cars Aerodynimcs (Drag reduction and Downforce increase) to help to minimize fuel consumption and hence reduce exhaust emisions. The Ahmed body ... -
Preliminary study of the flow on NACA airfoil for future implementation of active flow control
(Universitat Politècnica de Catalunya, 2016-07-06)
Treball Final de Grau
Accés restringit per decisió de l'autorDirect numerical simulations are performed on a NACA 2412 airfoil with an attack angle of 12 degrees and Reynolds numbers between 300 and 35.000. The details of the flow separation, formation and destabilization of the ...
