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Direct Numerical Simulation of Convective Channel Flow with Temperature and Concentration Gradients

Bahavar, Philipp and Wagner, Claus (2018) Direct Numerical Simulation of Convective Channel Flow with Temperature and Concentration Gradients. In: New Results in Numerical and Experimental Fluid Mechanics XI Notes on Numerical Fluid Mechanics an Multidiciplinary Design 136, 136. Springer, Cham. pp. 445-453. ISBN 978-3-319-64518-6. ISSN 1612-2909

Full text not available from this repository.

Official URL: http://link.springer.com/chapter/10.1007/978-3-319-64519-3_40

Abstract

Mixed convection in a differentially heated channel with an additional concentration gradient is investigated via direct numerical simulation (DNS) using a finite volume method based on fourth order accurate central differences in space and an explicit time integration scheme. The fluid is treated as a homogeneous fluid characterized by its temperature and mixing ratio. The Boussinesq approximation is employed to calculate the influence of the buoyant force resulting from density differences due to both quantities in preparation of future investigations of humid air flows in various ventilation applications. The simulations at different values for the modified Grashof number show a distinct effect of the mixing ratio on the flow and temperature profiles for values approximating the conditions found in humid air, in line with those found for purely thermal systems with comparable Grashof number.

Item URL in elib:https://elib.dlr.de/115642/
Document Type:Contribution to a Collection
Additional Information:First Online:31 October 2017; https://doi.org/10.1007/978-3-319-64519-3; Series Online ISSN 1860-0824; Online ISBN 978-3-319-64519-3
Title:Direct Numerical Simulation of Convective Channel Flow with Temperature and Concentration Gradients
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Bahavar, PhilippUNSPECIFIEDUNSPECIFIED
Wagner, ClausClaus.Wagner (at) dlr.deUNSPECIFIED
Date:2018
Journal or Publication Title:New Results in Numerical and Experimental Fluid Mechanics XI
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:136
DOI :10.1007/978-3-319-64519-3
Page Range:pp. 445-453
Editors:
EditorsEmail
Dillmann, AndreasInstitut für Aerodynamik und Strömungstechnik, Deutsches Zentrum für Luft- und Raumfahrt, Göttingen, Germany
Heller, GerdAirbus Deutschland, Bremen, Germany
Krämer, EwaldInstitut für Aerodynamik und Gasdynamik, Universität Stuttgart, Stuttgart, Germany
Wagner, ClausInstitut für Aerodynamik und Strömungstechnik, Deutsches Zentrum für Luft- und Raumfahrt, Göttingen, Germany
Bansmer, StephanInstitut für Strömungsmechanik, Technische Universität Braunschweig, Braunschweig, Germany
Radespiel, RolfInstitut für Strömungsmechanik, Technische Universität Braunschweig, Braunschweig, Germany
Semaan, RichardInstitut für Strömungsmechanik, Technische Universität Braunschweig, Braunschweig, Germany
Publisher:Springer, Cham
Series Name:Notes on Numerical Fluid Mechanics an Multidiciplinary Design 136
ISSN:1612-2909
ISBN:978-3-319-64518-6
Status:Published
Keywords:DNS, Channel Flow, Boussinesq Approximation, Fluid Mixture
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Fluid Systems, GO
Deposited By: Bachmann, Barbara
Deposited On:21 Nov 2017 11:04
Last Modified:24 May 2018 10:21

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