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Transient temperature fields of turbulent mixed convection in an aircraft cabin caused by a local heat source

Dehne, Tobias and Bosbach, Johannes (2016) Transient temperature fields of turbulent mixed convection in an aircraft cabin caused by a local heat source. In: New Results in Numerical and Experimental Fluid Mechanics X Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 132. Springer International Publishing Switzerland 2016. pp. 371-381. ISBN 978-3-319-27278-8. ISSN 1612-2909

Full text not available from this repository.

Official URL: http://www.springer.com/de/book/9783319272788

Abstract

The impact of a localized, transient head load on the temperature fields in aircraft cabin air flows was investigated in the Do 728 test bed of the German Aerospace Center. Surface and fluid temperatures were analyzed using more than 340 local sensors as well as a grid of polystyrene spheres, which was imaged by an infrared camera. To simulate the impact of the real passengers, thermal passenger dummies were used. The spatial spreading of the heat released by the local source could be characterized for the state of the art mixing ventilation system (MV – mixing ventilation) and a novel ventilation system (CCDV – ceiling based cabin displacement ventilation), which provides fresh air at low momentum through the cabin ceiling. As expected, CCDV provides lower cabin temperatures due to its higher heat removal efficiency. While MV tends to accumulate the heat released by the local source in the passenger zone, warm air is able to ascend to the ceiling more easy at CCDV due to the lower inertia forces. The different amount of inertia forces in the flow between MV and CCDV has a measureable impact on the temporal behavior of the resulting flow patterns during operation of the heat source, which is well reflected in the fluctuations of the temperature elevations.

Item URL in elib:https://elib.dlr.de/91719/
Document Type:Contribution to a Collection
Title:Transient temperature fields of turbulent mixed convection in an aircraft cabin caused by a local heat source
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Dehne, Tobiastobias.dehne (at) dlr.deUNSPECIFIED
Bosbach, Johannesjohannes.bosbach (at) dlr.deUNSPECIFIED
Date:January 2016
Journal or Publication Title:New Results in Numerical and Experimental Fluid Mechanics X
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:132
DOI :10.1007/978-3-319-27279-5_33
Page Range:pp. 371-381
Editors:
EditorsEmail
Dillmann, AndreasDLR Göttingen
Heller, GerdAirbus Deutschland, Bremen, Germany
Krämer, EwaldUNI Stuttgart
Wagner, ClausDLR Göttingen
Breitsamer, ChristianTU München
Publisher:Springer International Publishing Switzerland 2016
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design
ISSN:1612-2909
ISBN:978-3-319-27278-8
Status:Published
Keywords:Mixing ventilation, Displacement Ventilation, Aircraft cabin, Temperature fields, Indoor air flow, Environmental control
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: Bachmann, Barbara
Deposited On:18 Jul 2016 10:25
Last Modified:22 Jan 2018 16:50

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