Building physics simulations; CFD; Turbulence modelling; Simulation multiphysique du bâtiment; Modélisation de la turbulence
Abstract :
[en] Environmental concerns and growing computer resources have promoted the emergence of new simulation tools and especially Computational Fluid Dynamics (CFD). A lot of academic studies have proved the interest of this approach. Unfortunately, for non-expert users, it is sometimes difficult to deal with turbulence modelling. Indeed, in this area, conclusions of previous studies are very fickle and sometimes contradictory. This paper aims to evaluate the impact of the turbulence modelling with different Reynolds-Average Navier-Stokes (RANS) techniques applied to airflows inside buildings. It appears that differences are often very small and completely insignificant at the design stage. However, when numerical resources requirements and computing time are considered, important differences appear in favour of the simplest model.
Research center :
LEMA Lepur : Centre de Recherche en Sciences de la Ville, du Territoire et du Milieu rural
Disciplines :
Aerospace & aeronautics engineering Architecture
Author, co-author :
Barbason, Mathieu ; Université de Liège - ULiège > Département Argenco : Secteur TLU+C > Urbanisme et aménagement du territoire
Reiter, Sigrid ; Université de Liège - ULiège > Département Argenco : Secteur TLU+C > Urbanisme et aménagement du territoire
Language :
English
Title :
About the choice of a turbulence model in building physics simulations
Publication date :
2010
Event name :
7th Conference on Indoor Air Quality, Ventilation and Energy Conservation in buildings (IAQVEC 2010)
Event organizer :
Syracuse University
Event place :
Syracuse, United States
Event date :
2010
Audience :
International
Main work title :
Proceedings of the 7th conference on Indoor Air Quality, Ventilation and Energy Conservation in buildings
Peer reviewed :
Peer reviewed
Name of the research project :
SImulation Multiphysique du BAtiment (SIMBA)
Funders :
FEDER - Fonds Européen de Développement Régional [BE]