Browsing by Subject "Aerodynamics"

Now showing items 1-20 of 184

    • 3D load estimation on a horizontal axis wind turbine using SPIV 

      Campo Gatell, Vanessa del; Ragni, D.; Micallef, D.; Akay, B.; Diez, F. J.; Ferreira, C. Simao (2014-11-01)
      Article
      Restricted access - publisher's policy
      The flow around the blade of a horizontal axis wind turbine wind tunnel model, operating at its optimal tip speed ratio in axial flow, has been investigated by means of stereoscopic particle image velocimetry (SPIV). The ...

    • A Chimera method for the incompressible Navier-Stokes equations 

      Houzeaux, Guillaume; Eguzkitza, Beatriz; Aubry, Romain; Owen, H.; Vázquez Arenas, M. Benita (2014-05-30)
      Article
      Restricted access - publisher's policy
      The Chimera method was developed three decades ago as a meshing simplification tool. Different components are meshed independently and then glued together using a domain decomposition technique to couple the equations ...

    • A first assessment of an aerodynamic barrier layer for filtering airborne hygroscopic particles 

      Arias Montenegro, Francisco Javier; Heras Jiménez, Salvador Augusto de las (2021-09-01)
      Article
      Restricted access - publisher's policy
      In this work consideration is given to an aerodynamic concept for filtration of small water droplets such as those caused by an infected person when coughs or sneezes and including airborne hygroscopic particle, and with ...

    • A mathematical model for the motion of an in-flight soccer ball 

      Myers, Timothy; Mitchell, Sarah Louise (2013)
      Article
      Open Access
      In this paper, an analytical and numerical study of the three-dimensional equations describing the motion through the air of a spinning ball is presented. The initial analysis involves constant drag coefficients, but is ...

    • A meshless finite point method for three dimensional analysis of compressible flow problems involving moving boundaries and adaptivity 

      Ortega, Enrique; Oñate Ibáñez de Navarra, Eugenio; Idelsohn Barg, Sergio Rodolfo; Flores Le Roux, Roberto Maurice (2013-10)
      Article
      Restricted access - publisher's policy
      A finite point method for solving compressible flow problems involving moving boundaries and adaptivity is presented. The numerical methodology is based on an upwind-biased discretization of the Euler equations, written ...

    • A review of gas-surface interaction models for orbital aerodynamics applications 

      Livadiotti, Sabrina; Crisp, Nicholas H.; Roberts, Peter C.E; García-Almiñana, Daniel; Rodríguez Donaire, Silvia; Sureda Anfres, Miquel (2020-11)
      Article
      Open Access
      Renewed interest in Very Low Earth Orbits (VLEO) - i.e. altitudes below 450 km - has led to an increased demand for accurate environment characterisation and aerodynamic force prediction. While the former requires knowledge ...

    • 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 for external aerodynamics: from micro air vehicles to a full aircraft in stall 

      Lehmkuhl Barba, Oriol; Lozano-Durán, Adrian; Rodríguez Pérez, Ivette María (Institute of Physics (IOP), 2020-04-01)
      Article
      Open Access
      We investigate the aerodynamic performance of active flow control of airfoils and wings using synthetic jets with zero net-mass flow. The study is conducted via wall-resolved and wall-modeled large-eddy simulation using ...

    • Active flow control of the boundary layer on an airfoil: a numerical study 

      Grande Silva, Albert (Universitat Politècnica de Catalunya, 2021-01)
      Bachelor thesis
      Open Access
      En aquest projecte es duu a terme un estudi per comprovar l’efecte de la utilització de control de flux actiu sobre el rendiment d’un perfil aerodinàmic utilitzant el software OpenFOAM. Per fer-ho, primerament s’elabora ...

    • Active flow control optimisation on SD7003 airfoil at pre and post-stall angles of attack using synthetic jets 

      Monshi Tousi, Navid; Coma Company, Martí; Bergadà Granyó, Josep Maria; Pons Prats, Jordi; Mellibovsky Elstein, Fernando; Bugeda Castelltort, Gabriel (2021-06-10)
      Article
      Restricted access - publisher's policy
      The use of Active Flow Control (AFC) technologies to modify the forces acting on streamlined bodies is one of the most active research fields in aerodynamics. For each particular application, finding the optimum set of AFC ...

    • (Active Flow Control) AFC study on an airfoil 

      Calvo San Emeterio, Carlos (Universitat Politècnica de Catalunya, 2016-09)
      Bachelor thesis
      Restricted access - author's decision

    • Advanced study for the numerical resolution of the Navier-Stokes equations with observation of the thermal camber on high camber aerofoils in moderate reynolds number flow 

      Sefo, Sea (Universitat Politècnica de Catalunya, 2021-02-15)
      Master thesis
      Restricted access - author's decision
      Through the means of temperature variations of the aerofoil surface this report aimed to investigate and enhance the aerodynamic efficiency of micro air vehicles. Through the process of heating the lower edge of the aerofoil ...

    • Aerodynamic and structural design of a front wing 

      Bolart Peña, Carles Ramon (Universitat Politècnica de Catalunya, 2017-10-10)
      Bachelor thesis
      Restricted access - author's decision
      This project tackles, from scratch, the design of a front wing for a Formula Student car, from both the aerodynamic and structural approach. First, targets are stated and requirements regarding safety, manufacturing and ...

    • Aerodynamic design of a RC model airplane for SAE Aero Design 

      Bernaldo Franco, Pol (Universitat Politècnica de Catalunya, 2016-10-03)
      Bachelor thesis
      Restricted access - author's decision
      This project focuses on the aerodynamic design of a RC model airplane for the SAE Aero Design competition of 2016. It solely includes the aerodynamic design, thus, no structural / mechanical analysis nor manufacturing ...

    • Aerodynamic efficiency improvement on a NACA-8412 airfoil via active flow control implementation 

      Couto, Nil; Bergadà Granyó, Josep Maria (Multidisciplinary Digital Publishing Institute, 2022-04-23)
      Article
      Open Access
      The present paper introduces a parametric optimization of several Active Flow Control (AFC) parameters applied to a NACA-8412 airfoil at a single post-stall Angle of Attack (AoA) of 15° and Reynolds number Re = 68.5×103. ...

    • 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 ...

    • Aerodynamic performance of the rear spoiler of a Formula Renault V3.5 2007 

      Pla Navarro, Roger (Universitat Politècnica de Catalunya, 2011-04-13)
      Bachelor thesis
      Restricted access - author's decision
      L’objectiu d’aquest projecte és simular el comportament de l’aleró posterior d’un cotxe de competició de les World Series by Renault 3.5 a mesura que es mou per l’aire. Per tant, s’estudiaran les diverses forces ...

    • Aerodynamic performances and wake topology past a square cylinder in the interface of two different-velocity streams 

      El Mansy, Reda; Bergadà Granyó, Josep Maria; Sarwar, Wasim; Mellibovsky Elstein, Fernando (American Institute of Physics (AIP), 2022-06-02)
      Article
      Open Access
      We analyze the incompressible flow past a square cylinder immersed in the wake of an upstream splitter plate, which separates two streams of different velocities, UT (top) and UB (bottom). The Reynolds number associated ...

    • Aerodynamic study of a ship sail including calculation of its shape 

      Amer Viñas, Max (Universitat Politècnica de Catalunya, 2020-06-30)
      Bachelor thesis
      Open Access
      This project consists on the calculation of the shape of a ship sail under the load of the wind in downwind conditions, as well as the aerodynamic study and calculation of aerodynamic forces and coefficients through CFD ...

    • Aerodynamic study of the NASA’s X-43A hypersonic aircraft 

      Navó, Alex; Bergadà Granyó, Josep Maria (Multidisciplinary Digital Publishing Institute, 2020-11-19)
      Article
      Open Access
      A 2D aerodynamic study of the NASA’s X-43A hypersonic aircraft is developed using two different approaches. The first one is analytical and based on the resolution of the oblique shock wave and Prandtl–Meyer expansion wave ...