Ara es mostren els items 1-19 de 19

  • Active flow control on cambered airfoils at ultralow Reynolds using synthetic jets 

    Valdepeñas Pujol, Pau (Universitat Politècnica de Catalunya, 2017-09-21)
    Treball Final de Grau
    Accés obert
    Active 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 

    Font Prats, Pau (Universitat Politècnica de Catalunya, 2013-03-08)
    Treball Final de Grau
    Accés obert
    From 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 

    Moreno Colilles, Joan Marc (Universitat Politècnica de Catalunya, 2017-10-30)
    Treball Final de Grau
    Accés obert
    The 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 

    Montañez Fabrés, Raquel (Universitat Politècnica de Catalunya, 2017-07)
    Treball Final de Grau
    Accés obert
    En 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 ...
  • Characterization of localized solutions of plane Poiseuille flow in very long domains 

    Valera Pascual, Antonio (Universitat Politècnica de Catalunya, 2016-05-24)
    Treball Final de Grau
    Accés obert
    The 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 

    Alarcón Vilardell, David (Universitat Politècnica de Catalunya, 2008-03-17)
    Projecte/Treball Final de Carrera
    Accés restringit per decisió de l'autor
    Este 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 ...
  • Gas turbine design & analysis tool: ducting components 

    Vilella Moreno, Ferran (Universitat Politècnica de Catalunya, 2012-07-16)
    Treball Final de Grau
    Accés obert
    Aquest 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 

    Vigo Medina, Jose (Universitat Politècnica de Catalunya, 2012-07-16)
    Treball Final de Grau
    Accés obert
    English: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. 

    Garcia Soto, David (Universitat Politècnica de Catalunya, 2012-07-16)
    Treball Final de Grau
    Accés obert
    Este 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 

    Bergillo Cortes, Jordi (Universitat Politècnica de Catalunya, 2017-10-30)
    Treball Final de Grau
    Accés obert
    Reynolds'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 

    Suárez Martínez, Guillermo (Universitat Politècnica de Catalunya, 2017-09-15)
    Treball Final de Grau
    Accés obert
    In 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 ...
  • Numerical study and optimization of a GT car Rear-Wing aerodynamics 

    Arianezhad, Masoud (Universitat Politècnica de Catalunya, 2015-03-26)
    Projecte Final de Màster Oficial
    Accés obert
    The 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 

    Sanchez Martinez, Javier (Universitat Politècnica de Catalunya, 2015-09-30)
    Treball Final de Grau
    Accés obert
    The 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 

    Baratech Diaz, Jaume (Universitat Politècnica de Catalunya, 2016-07-06)
    Treball Final de Grau
    Accés restringit per decisió de l'autor
    Direct 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 ...
  • Simulación CFD de la entrada de aire de un motor a reacción 

    Vega Molero, Víctor (Universitat Politècnica de Catalunya, 2011-07-18)
    Treball Final de Grau
    Accés obert
    La finalidad de este trabajo es el estudio de la entrada de aire de un motor de reacción, en ningún caso optimizar una entrada de aire para unas condiciones de vuelo determinadas Para ello se utilizarán técnicas de ...
  • Simulación CFD de la etapa de turbinado de un motor a reacción 

    Genzor Aragonés, Isaac (Universitat Politècnica de Catalunya, 2011-07-20)
    Treball Final de Grau
    Accés obert
    Este trabajo tiene como objetivo el estudio del comportamiento de la turbina en un motor de reacción. Para ello, se simula una etapa de turbina en dos dimensiones utilizando técnicas CFD y se pretende analizar la validez ...
  • Simulación numérica de la dinámica de un velero 

    Lorenzo Mora, Alejandra; Ferrer Font, Eduard (Universitat Politècnica de Catalunya, 2012-10-29)
    Treball Final de Grau
    Accés obert
    A sailboat is a vehicle that simultaneously "flies" in air and water. The dynamics can be modelled by means of the Newton laws, but closure models for the aerodynamic forces on the sail and the hydrodynamic forces on the ...
  • Simulation of a fluidic oscillator for active flow control of boundary layer separation 

    Chaparro Castro, Grecia Tatiana (Universitat Politècnica de Catalunya, 2017-05-03)
    Treball Final de Grau
    Accés restringit per decisió de l'autor
    The main purpose of this study is to analyze the different types of flow regimes that can be found on a two-dimension fluidic oscillator at low Reynolds number. First of all, there is a description on what types of fluidic ...
  • Simulation of an hypersonic gas turbine ramjet engine intake in the supersonic regime 

    El Houas Ghouddana, Ismael (Universitat Politècnica de Catalunya, 2017-10-31)
    Treball Final de Grau
    Accés obert
    Since the beginning of time, we have fixed our eyes in space, imagining the possibility to arrive there. After hundreds of years of investigation, in the 20th century, we have achieved this goal. Now, in the 21st century, ...