Enviaments recents

  • On the use of a parallel object-oriented code for solving the heat transfer in hermetic reciprocating compressors 

    López Mas, Joan; Rigola Serrano, Joaquim; Lehmkuhl Barba, Oriol; Oliva Llena, Asensio (Purdue University, 2016)
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    The heat transport phenomenon in a hermetic reciprocating compressor is addressed in this work. This is far from straightforward. It involves several transient physical phenomena interacting to each other. The heat is ...
  • 3D compressible simulation of a muffler with pseudosound prediction levels 

    Ruano Perez, Jesus; López Mas, Joan; Lehmkuhl Barba, Oriol; Rigola Serrano, Joaquim; Pérez Segarra, Carlos David (Purdue University, 2016)
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    The main objective of this paper is to present a numerical resolution of a suction muffler configuration by using an in-house object oriented CFD & HT code TermoFluids (Lehmkuhl et al. 2007), able to handle tridimensional ...
  • Virtual household refrigerators at steady-state and transient conditions. Numerical model and experimental validation 

    Ablanque Mejía, Nicolás; Oliet Casasayas, Carles; Rigola Serrano, Joaquim; Pérez Segarra, Carlos David (Purdue University, 2016)
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    The current status of a flexible numerical model for vapor compression refrigeration systems for steady state and transient conditions is presented. The model simulates both the refrigeration cycle itself and the refrigerated ...
  • Fluid-structure interaction of a reed type valve 

    González Acedo, Ignacio; Lehmkuhl Barba, Oriol; Naseri, Alireza; Rigola Serrano, Joaquim; Oliva Llena, Asensio (Purdue University, 2016)
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    This paper presents a complete numerical procedure to study the fluid-structure interaction problem of incompressible flow through reed valves, typically employed in hermetic reciprocating compressors. A partitioned ...
  • The effects of roughness on the boundary layer development of a circular cylinder 

    Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Piomelli, Ugo; Chiva Segura, Jorge; Borrell, Ricard; Oliva Llena, Asensio (European Research Community on Flow, Turbulence, and Conbustion (ERCOFTAC), 2017)
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    This paper focuses on the effects of surface roughness in the flow past a circular cylinder at different Reynolds numbers. Large eddy simulations of the flow, from subcritical to transcritical Reynolds numbers and at ...
  • A complete analysis of the heat, air and moisture transfer on building performance 

    Souaihi, Oussama; Lopez, Joan; Capdevila Paramio, Roser; Rigola Serrano, Joaquim; Lehmkuhl Barba, Oriol; Oliva Llena, Asensio (2016)
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    The simulation of combined heat, air and moisture (HAM) is important to predict the indoor air quality and thermal comfort. Moreover, inappropriate levels of indoor humidity and temperature can contribute to a high movement ...
  • Energy simulation of a single family dwelling as a test bench for climate control system assessment 

    Capdevila Paramio, Roser; Souaihi, Oussama; Lopez, Joan; Rigola Serrano, Joaquim; Lehmkuhl Barba, Oriol; Oliva Llena, Asensio (2016)
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    In the present work a real dwelling (a semi-detached house in the Netherlands) has been modelled with an in-house modular object-oriented building simulation tool, called NEST-Buildings. This software models the whole ...
  • Numerical simulation of thermal and fluid dynamic phenomena as a tool for energy eficiency in buildings. Application to refrofiting edification 

    Rigola Serrano, Joaquim; Lehmkuhl Barba, Oriol; Capdevila Paramio, Roser; Lopez, Joan; Castro González, Jesús; Kizildag, Deniz; Oliva Llena, Asensio (Aalborg University Press, 2016)
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    The present paper is based on showing the work carried out by the authors in an FP7 EU project “REtrofitting Solutions and Services for the enhancement of Energy Efficiency in Public Edification (RESSEEPE)” developing and ...
  • Fine-scale dynamics in turbulent Rayleigh-Bénard convection 

    Dabbagh, Firas; Trias Miquel, Francesc Xavier; Gorobets, Andrei; Oliva Llena, Asensio (Begell House, 2015)
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    Small-scale universal features captured normally in many turbulent flows have been reviewed in Rayleigh-Bénard convection. Namely, dynamical Lagrangian representations of the velocity gradient tensor invariants have displayed ...
  • Thermal optimization of multi-functional façades as energy efficient solution in retrofitting of public buildings 

    Kizildag, Deniz; Lehmkuhl Barba, Oriol; Rigola Serrano, Joaquim; Capdevila Paramio, Roser; Oliva Llena, Asensio (International Building Performance Simulation Association (IBPSA), 2016)
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    The present work is on the implementation of a multi-functional ventilated façade model within an existing parallel and object-oriented platform for the prediction of the thermal performance of the buildings. Owing to its ...

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