Exploració per autor "Rodríguez Pérez, Ivette María"Més informacióMés informació

Ara es mostren els items 21-40 de 120

    • Direct and large-eddy simulation of non-oberbeck-boussinesq effects in a turbulent differentially heated cavity 

      Kizildag, Deniz; Trias Miquel, Francesc Xavier; Rodríguez Pérez, Ivette María; Oliva Llena, Asensio (Springer, 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial

    • Direct numerical simulation and Large-Eddy simulations of the turbulent flow around a NACA-0012 airfoil 

      Lehmkuhl Barba, Oriol; Baez Vidal, Aleix; Rodríguez Pérez, Ivette María; Pérez Segarra, Carlos David (2011)
      Text en actes de congrés
      Accés obert
      This paper investigates the capabilities of two subgrid-scale (SGS) models for predicting the complex flow in transitional separated bubbles. We consider here the flow over a NACA 0012 airfoil at Reynolds number Re = 5×10 ...

    • Direct numerical simulation of a NACA0012 in full stall 

      Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Borrell Pol, Ricard; Oliva Llena, Asensio (2013-10-15)
      Article
      Accés obert
      This work aims at investigating the mechanisms of separation and the transition to turbulence in the separated shear-layer of aerodynamic profiles, while at the same time to gain insight into coherent structures formed ...

    • Direct Numerical Simulation of the flow over a sphere at Re = 3700 

      Rodríguez Pérez, Ivette María; Borrell Pol, Ricard; Lehmkuhl Barba, Oriol; Oliva Llena, Asensio; Pérez Segarra, Carlos David (2009)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      The direct numerical simulation of the flow past a sphere at Re=3700 is presented. The computations are carried out with a parallel unstructured symmetry preserving information for accurate solving complex geometries. As ...

    • Direct numerical simulation of the flow over a sphere at Re = 3700 

      Rodríguez Pérez, Ivette María; Borrell Pol, Ricard; Lehmkuhl Barba, Oriol; Pérez Segarra, Carlos David; Oliva Llena, Asensio (2011-05-19)
      Article
      Accés restringit per política de l'editorial
      The direct numerical simulation of the flow over a sphere is performed. The computations are carried out in the sub-critical regime at Re = 3700 (based on the free-stream velocity and the sphere diameter). A parallel ...

    • Direct Numerical Simulation of the turbulent flow around a NACA 0012 airfoil at different angles of attack 

      Baez Vidal, Aleix; Lehmkuhl Barba, Oriol; Rodríguez Pérez, Ivette María; Pérez Segarra, Carlos David (2011)
      Text en actes de congrés
      Accés obert
      Direct numerical simulations (DNS) of the flow dynamics over a NACA 0012 airfoil at Reynolds number Re = 5×104 at different angles of attack are presented. The dynamic of the large separation bubble, characterised by laminar ...

    • Direct numerical simulation of turbulent wakes: flow past a sphere at Re=5000 

      Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Borrell Pol, Ricard; Oliva Llena, Asensio; Pérez Segarra, Carlos David (2010)
      Text en actes de congrés
      Accés obert
      The flow around bluff bodies is of great interest for a large number of engineering applications such as vehicle aerodynamics, cooling devices using forced convection, heat transfer enhancement using droplets, among ...

    • DNS and POD analysis of separated flow in a three-dimensional diffuser 

      Miró Jané, Arnau; Eiximeno Franch, Benet; Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol (Springer, 2023)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      A DNS of a three dimensional diffuser has been performed with the in-house solver Alya. The resulting dataset presents a good agreement with existing numerical and experimental data, even without smoothing of the sharp ...

    • Effect of the actuation on the boundary layer of an airfoil at moderate reynolds number 

      Lehmkuhl Barba, Oriol; Rodríguez Pérez, Ivette María; Borrell Pol, Ricard (Springer, 2020)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Synthetic (zero net mass flux) jets are an active flow control technique to manipulate the flow field in wall-bounded and free-shear flows. The fluid necessary to actuate on the boundary layer is intermittently injected ...

    • Effects of the actuation on the boundary layer of an airfoil at Reynolds Number Re = 60000 

      Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Borrell Pol, Ricard (Springer-Verlag, 2020-05-29)
      Article
      Accés obert
      Synthetic (zero net mass flux) jets are an active flow control technique to manipulate the flow field in wall-bounded and free-shear flows. The present paper focuses on the role of the periodic actuation mechanisms on the ...

    • Energy simulation of buildings with a modular object-oriented tool 

      Mohan Damle, Rashmin; Lehmkuhl Barba, Oriol; Colomer Rey, Guillem; Rodríguez Pérez, Ivette María (2011)
      Text en actes de congrés
      Accés obert
      The aim of this work is to develop a modular object-oriented tool “NEST” (Numerical Edifice Simulation Tool) for the energy simulation of buildings, which can be coupled with a parallel CFD software. For this purpose, a ...

    • Exploring the performance of a miniature 3D wind sensor under extreme martian winds up to the dust devil scale 

      Domínguez Pumar, Manuel; Kowalski, Lukasz; Jiménez Serres, Vicente; Rodríguez Pérez, Ivette María; Soria Guerrero, Manel (2019)
      Text en actes de congrés
      Accés obert
      The objective of this paper is to explore the performance of a miniature 3D spherical wind sensor for Mars atmosphere, working under extreme wind speeds, up to the Dust Devil scale. The experimental campaign has been made ...

    • Flow and turbulent structures around simplified car models 

      Aljure Osorio, David E.; Lehmkuhl Barba, Oriol; Rodríguez Pérez, Ivette María; Oliva Llena, Asensio (Elsevier, 2014-06-13)
      Article
      Accés obert
      External car aerodynamics study has great importance in overall car efficiency and ride stability, being a key element in successful automotive design. The flow over car geometries shows three dimensional and unsteady ...

    • Flow dynamics in the turbulent wake of a sphere at sub-critical Reynolds numbers 

      Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Borrell Pol, Ricard; Oliva Llena, Asensio (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The direct numerical simulation of the flow over a sphere is performed. The computations are carried out in the sub-critical regime at Re = 3700 and Re = 10000 (based on the free-stream velocity and the sphere diameter). ...

    • Flow past a NACA0012 airfoil: from laminar separation bubbles to fully stalled regime 

      Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Borrell Pol, Ricard; Oliva Llena, Asensio (Springer, 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial

    • Flow topology and heat transfer analysis of slotted and axisymmetric synthetic impinging jets 

      Miró Jané, Arnau; Soria Guerrero, Manel; Cajas García, Juan Carlos; Rodríguez Pérez, Ivette María; Moulinec, Charles (2021-06)
      Article
      Accés obert
      This work is focused on exploring the flow and heat transfer capabilities for slotted and axisymmetric cavity configurations for synthetic impinging jets; the jet is enclosed between two isothermal parallel plates, impinging ...

    • Fluid dynamics and heat transfer in the wake of a sphere 

      Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Soria Guerrero, Manel; Gómez, Samuel; Domínguez Pumar, Manuel; Kowalski, Lukasz (2019-04)
      Article
      Accés obert
      Direct numerical simulation and large-eddy simulation have been performed for a heated sphere at Reynolds numbers of $Re=1000$ and $Re=10^4$, respectively. The Prandtl number for both simulations has been $Pr=0.7$. ...

    • Heat transfer analysis and numerical simulation of a parabolic trough solar collector 

      Amine Hachicha, Ahmed; Rodríguez Pérez, Ivette María; Capdevila Paramio, Roser; Oliva Llena, Asensio (2013-11-01)
      Article
      Accés obert
      Parabolic trough solar collector is the most proven industry-scale solar generation technology today available. The thermal performance of such devices is of major interest for optimising the solar field output and increase ...

    • Hybrid computation of the aerodynamic noise radiated by the wake of a subsonic cylinder 

      Eiximeno Franch, Benet; Tur Monge, Carlos; Lehmkuhl Barba, Oriol; Rodríguez Pérez, Ivette María (Multidisciplinary Digital Publishing Institute (MDPI), 2023-08-21)
      Article
      Accés obert
      The noise radiated by the flow around a cylinder in the subcritical regime at 𝑅𝑒𝐷=1×104 and at a subsonic Mach number of 𝑀=0.5 is here studied. The aerodynamic sound radiated by a cylinder has been studied with a ...

    • Improved semi-analytical method for air curtains prediction 

      Giráldez García, Héctor; Pérez Segarra, Carlos David; Rodríguez Pérez, Ivette María; Oliva Llena, Asensio (2013-11)
      Article
      Accés restringit per política de l'editorial
      The present study is devoted to the analysis and prediction of the efficiency of air curtains. The attention is focused on improving existing semi-analytical methods with the information from CFD simulations and experimental ...