Now showing items 1-20 of 45

    • 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 ...
    • Application of active flow control to airfoils at ultralow Reynolds numbers 

      Hernández Font, Joan (Universitat Politècnica de Catalunya, 2021-07-26)
      Bachelor thesis
      Open Access
      Aeronautics industry experienced its greatest expansion in terms of technological development in the Second World War and Cold War periods. Since then, progress has been made over the avionics, the aerodynamics, the airspace ...
    • Bellmouth intake design for test rig airflow adaptation and air mass flow measurement of a microturbojet 

      Quispe Galindo, Álvaro Javier (Universitat Politècnica de Catalunya, 2021-01-29)
      Bachelor thesis
      Restricted access - author's decision
      A bellmouth intake to adapt the airflow into a micro turbojet (EvoJet170neo) during on ground rig testing has been designed and optimised through numerical simulation with OpenFOAM. The design that has been chosen for the ...
    • 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 ...
    • Diseño de un sistema de medición y visualización de un túnel de agua 

      Maldonado Lita, Welington Samir (Universitat Politècnica de Catalunya, 2021-10-28)
      Bachelor thesis
      Restricted access - author's decision
      The aeronautic and aerospace sector are in constant development, in which more and more progress is being made. This sectors¿ growth can be considered exponential, as it is bound to the new technologies, which in the last ...
    • 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 ...
    • Estudio de la viabilidad de los sistemas de propulsión híbrida para aviación comercial regional 

      Ouhna Asakkach, Said (Universitat Politècnica de Catalunya, 2021-10-29)
      Bachelor thesis
      Restricted access - author's decision
      In recent years, given the great environmental pollution we are experiencing today, and the environmental impact this entails, many industries have had to reinvent themselves and take advantage of clean energy. A great ...
    • Exact coherent structures in the transitional regime of shear and centrifugal flows 

      Ayats López, Roger (Universitat Politècnica de Catalunya, 2022-04-22)
      Doctoral thesis
      Open Access
      Turbulence is one of the major concerns for most technological problems involving fluid motion. Specially in aeronautics, a turbulent boundary layer results in structural stresses, vibrations and higher aircraft drag, ...
    • 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 ...