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Experimental study on the impact of large-scale flow structures on the passenger comfort in a miniaturised aircraft cabin

Westhoff, Andreas and Wagner, Claus (2020) Experimental study on the impact of large-scale flow structures on the passenger comfort in a miniaturised aircraft cabin. In: 21st STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics, 142, pp. 468-477. Springer Nature. 21. STAB/DGLR Symposium 2018, 6.-7. Nov. 2018, Darmstadt. DOI: 10.1007/978-3-030-25253-3_45 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_45

Abstract

The flow structure formation and the dynamics in mixed convective air flow are studied experimentally in a miniaturised aircraft cabin equipped with thermal manikins. With the objective to obtain full-scale characteristic numbers for the down-scaled set-up, temperature measurements and particle image velocimetry are performed at high-pressure P=19.6 bar. To determine the impact of buoyancy flow on the supplied forced convective cold inflow, the flow structure formation and the heat transfer are analysed for a Grashof number range of $8.06 \times 10^9 \leq \Gr \leq 17.72 \times 10^9$ and constant Reynolds number $\Rey = 1.5 \times 10^5$. It is found that the flow structure formation and the velocity distribution strongly depend on the ratio of buoyancy to inertia forces. In conclusion, the structure formation of the flow and its dynamics is discussed in dependency of the Richardson number $\Ri$ considering the consequences for the thermal comfort of the passengers.

Item URL in elib:https://elib.dlr.de/120352/
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:Experimental study on the impact of large-scale flow structures on the passenger comfort in a miniaturised aircraft cabin
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
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_45
Page Range:pp. 468-477
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
Jakirlic, 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:cabin ventilation, scaling, simlitude, large-scale structure, convection, heat transfer, aircraft cabin, mixed convection, passenger comfort
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 - NGC-Energiemanagement (old)
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Ground Vehicles
Deposited By: Westhoff, Andreas
Deposited On:22 Nov 2018 15:05
Last Modified:18 Jun 2020 09:47

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