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Reynolds Number Dependence of Heat and Mass Transfer in Mixed Convective Duct Flow with Condensation at a Cooled Wall

Brückner, Christian and Bahavar, Philipp and Westhoff, Andreas and Wagner, Claus (2020) Reynolds Number Dependence of Heat and Mass Transfer in Mixed Convective Duct Flow with Condensation at a Cooled Wall. In: 21st STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics, 142, pp. 523-532. Springer Nature. 21. STAB/DGLR Symposium 2018, 6.-7. Nov. 2018, Darmstadt. doi: 10.1007/978-3-030-25253-3_50. ISBN 978-3-030-25252-6. ISSN 1612-2909.

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Official URL: https://doi.org/10.1007/978-3-030-25253-3_50

Abstract

Temperature and humidity measurements are performed in mixed convective moist-air duct flows for the Reynolds numbers Re= 2000, 4000 and 6000 with condensation at a cooled wall in a vertical rectangular duct. The width-to-height ratio is 10.66:1. A comparison of experimental results obtained with passive insulation on the wall opposite to the cooled wall for Re=2000 with results of direct numerical simulations performed under adiabatic boundary conditions reveals large differences. The latter are significantly reduced by realising an active insulation with isothermal boundary conditions. Using this set-up, it is shown that the heat and mass transfer in terms of the Nusselt and Sherwood number increase with the Reynolds number.

Item URL in elib:https://elib.dlr.de/122588/
Document Type:Conference or Workshop Item (Speech)
Additional Information:Print ISBN 978-3-030-25252-6 Online ISBN 978-3-030-25253-3 ISSN-electronic 1860-0824
Title:Reynolds Number Dependence of Heat and Mass Transfer in Mixed Convective Duct Flow with Condensation at a Cooled Wall
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Brückner, ChristianChristian.Brueckner (at) dlr.deUNSPECIFIED
Bahavar, PhilippPhilipp.Bahavar (at) dlr.dehttps://orcid.org/0000-0003-3817-7875
Westhoff, AndreasAndreas.Westhoff (at) dlr.deUNSPECIFIED
Wagner, ClausClaus.Wagner (at) dlr.deUNSPECIFIED
Date:2020
Journal or Publication Title:21st STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:142
DOI :10.1007/978-3-030-25253-3_50
Page Range:pp. 523-532
Editors:
EditorsEmailEditor's ORCID iD
Dillmann, AndreasAndreas.Dillmann@dlr.deUNSPECIFIED
Heller, GerdAirbus BremenUNSPECIFIED
Krämer, EwaldInstitut für Aerodynamik und Gasdynamik Universität StuttgartUNSPECIFIED
Wagner, ClausClaus.Wagner@dlr.deUNSPECIFIED
Tropea, CameronFachgebiet Strömungslehre und Aerodynamik, TU DarmstadtUNSPECIFIED
Jarkilic, SuadTU DarmstadtUNSPECIFIED
Publisher:Springer Nature
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design
ISSN:1612-2909
ISBN:978-3-030-25252-6
Status:Published
Keywords:condensation, duct flow, heat transfer
Event Title:21. STAB/DGLR Symposium 2018
Event Location:Darmstadt
Event Type:international Conference
Event Dates:6.-7. Nov. 2018
Organizer:STAB/DGLR
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 for Aerodynamics and Flow Technology > Ground Vehicles
Deposited By: Brückner, Christian
Deposited On:15 Jul 2020 09:09
Last Modified:15 Jul 2020 09:09

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