Now showing items 1-20 of 37

    • 3D numerical simulation of a jet engine axial compression stage 

      Coma Calle, Ferran (Universitat Politècnica de Catalunya, 2015-09-14)
      Bachelor thesis
      Open Access
      The 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 Aerodynamics applied on the Arcfox-GT Supercar 

      Gil Esteller, Enric (Universitat Politècnica de Catalunya, 2019-07-23)
      Bachelor thesis
      Restricted access - author's decision
      In this project an aerodynamic study is developed on a supercar, integrating different aerodynamic elements from the active aerodynamics. The model where this innovating technology is applied is the ArcFox-GT, a Chinese ...
    • Active flow control methods for aerodynamic applications 

      Sarwar, Wasim (Universitat Politècnica de Catalunya, 2020-07-17)
      Doctoral thesis
      Open Access
      The cylinder in cross flow has been the subject of many numerical and experimental studies since it provides a deep insight of the physical phenomena occurring in a wide range of flow regimes. Despite a number of investigations ...
    • Active flow control on cambered airfoils at ultralow Reynolds using synthetic jets 

      Valdepeñas Pujol, Pau (Universitat Politècnica de Catalunya, 2017-09-21)
      Bachelor thesis
      Open Access
      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)
      Bachelor thesis
      Open Access
      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)
      Bachelor thesis
      Open Access
      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)
      Bachelor thesis
      Open Access
      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 ...
    • Análisis del flujo de aire a través de un difusor de automóvil 

      Saban Fosch, Alejandro (Universitat Politècnica de Catalunya, 2018-09-14)
      Bachelor thesis
      Open Access
      The 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 ...
    • Application of Active Flow Control on airfoils at ultralow Reynolds numbers 

      San Gabriel Romero, Carlos (Universitat Politècnica de Catalunya, 2019-10-29)
      Bachelor thesis
      Open Access
      In a previous research Active Flow Control techniques, such as sweeping jets, applied in an ultra-low Reynolds regime (Re=1000) were found effective to reattach an already separated flow achieving lift enhancements but ...
    • Characterization of localized solutions of plane Poiseuille flow in very long domains 

      Valera Pascual, Antonio (Universitat Politècnica de Catalunya, 2016-05-24)
      Bachelor thesis
      Open Access
      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 ...
    • Coupling strategies for solving the RANS equations 

      Suárez Martínez, Guillermo (Universitat Politècnica de Catalunya, 2020-02-14)
      Master thesis
      Open Access
      Covenantee:   Deutsches Zentrum für Luft-und Raumfahrt
      For the present work two implicit methods of coupling the compressible Reynolds Averaged Navier-Stokes equations in conjunction with the one equation Spalart-Allmaras turbulence model have been developed. The first approach, ...
    • Design of a hypersonic airbreathing cruise missile 

      Graells Pina, Eduard (Universitat Politècnica de Catalunya, 2019-09-02)
      Bachelor thesis
      Open Access
      In this project, a hypersonic airbreathing cruise missile is designed through an optimization process. The main use of this futuristic weapon technology is to be employed against enemy ships while being launched from an ...
    • Estudio computacional de un pulsorreactor sin válvulas 

      Buesa Orgaz, Jan (Universitat Politècnica de Catalunya, 2020-11-30)
      Bachelor thesis
      Restricted access - author's decision
      This project develops a computational study of an engine called pulsejet. Pulse jets were the first jets to be designed and built on a large scale. They have a simple geometry, are scalable and easy to manufacture. Despite ...
    • Estudio de la aerodinámica de un coche de GT mediante CFD 

      Alarcón Vilardell, David (Universitat Politècnica de Catalunya, 2008-03-17)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      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 ...
    • Fluidic active flow control of boundary layer separation on supercritical airfoil 

      Jurado Chillida, Jordi (Universitat Politècnica de Catalunya, 2019-07-15)
      Bachelor thesis
      Open Access
      Presently, during critical phases of flight like takeoff, landing or approach, aircrafts need systems as flaps or slats that helps them to improve lift. Those, hydraulic or mechanical, are deployed during these phases in ...
    • Fluidic oscillators: decoupling amplitude and frequency 

      Calderón Usán, Aleix (Universitat Politècnica de Catalunya, 2018-09-14)
      Master thesis
      Open Access
      The 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 

      Vilella Moreno, Ferran (Universitat Politècnica de Catalunya, 2012-07-16)
      Bachelor thesis
      Open Access
      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)
      Bachelor thesis
      Open Access
      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)
      Bachelor thesis
      Open Access
      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 ...
    • Herramientas de análisis en una bancada de pruebas para un micro turbojet 

      Torra Raventós, Aleix (Universitat Politècnica de Catalunya, 2020-06-30)
      Bachelor thesis
      Open Access
      The aim of this work is based on the design of a complementary measurement system for a micro turbo jet engine (EvoJet B180 NEO) test rig. The thermodynamic cycle of a micro turbo jet engine will be defined and analyzed ...