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Highly-Resolved Numerical Simulations of High Rayleigh and Reynolds Number Indoor Ventilation in a Generic Room

Shishkina, Olga and Wagner, Claus (2014) Highly-Resolved Numerical Simulations of High Rayleigh and Reynolds Number Indoor Ventilation in a Generic Room. In: New Results in Numerical and Experimental Fluid Mechanics IX Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 124. Springer Verlag, Cham Heidelberg New York Dordrecht London. pp. 301-311. ISBN 978-3-319-03157-6. ISSN 1612-2909

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Official URL: http://link.springer.com/chapter/10.1007/978-3-319-03158-3_31

Abstract

We conduct Direct Numerical Simulations (DNS) and Large Eddy Simulations (LES) of turbulent mixed convection in parallelepiped convective cells with heated parallelepiped obstacles inside, which represents indoor ventilation in a generic room. The considered Reynolds number Re based on the velocity of the inlet flow and the width of the inlet ducts is up to Re=1.0×10^3 (and 1.5×10^5 if based on the height of the cell) and the Grashof number Gr based on the height of the generic room and the temperature difference of the heated obstacles and the cooled inlet flows is up to Gr=2.8×10^10 . The flow for Re=1.5×10^5 , Gr=2.8×10^10 and the length of the domain L ˆ =5 m is studied by means of LES based on the Smagorinsky model. The results of the simulations reveal a strong dependency of the global flow structures on the Grashof number Gr , Archimedes number Ar and the length of the domain.

Item URL in elib:https://elib.dlr.de/93656/
Document Type:Contribution to a Collection
Additional Information:ISSN 1860-0824 (electronic), ISBN 978-3-319-03158-3 (eBook), Library of Congress Control Number: 2013957123, Part VI
Title:Highly-Resolved Numerical Simulations of High Rayleigh and Reynolds Number Indoor Ventilation in a Generic Room
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Shishkina, OlgaOlga.Shishkina (at) ds.mpg.deUNSPECIFIED
Wagner, Clausclaus.wagner (at) dlr.deUNSPECIFIED
Date:2014
Journal or Publication Title:New Results in Numerical and Experimental Fluid Mechanics IX
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:124
DOI :10.1007/978-3-319-03158-3_31
Page Range:pp. 301-311
Publisher:Springer Verlag, Cham Heidelberg New York Dordrecht London
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design
ISSN:1612-2909
ISBN:978-3-319-03157-6
Status:Published
Keywords:mixed convection, indoor ventilation, LES
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Terrestrial Vehicles (old)
DLR - Research area:Transport
DLR - Program:V BF - Bodengebundene Fahrzeuge
DLR - Research theme (Project):V - Next Generation Train III (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Fluid Systems
Deposited By: Micknaus, Ilka
Deposited On:15 Dec 2014 10:23
Last Modified:15 Dec 2014 10:23

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