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Numerical Simulation of the Thermal Comfort in a Double Decker Train Cabin

Konstantinov, Mikhail und Wagner, Claus (2015) Numerical Simulation of the Thermal Comfort in a Double Decker Train Cabin. University Printing House, Jyäskylä. CM3 conference 2015, 25. - 27. May 2015, yväskylä, Finnland. ISBN 978-951-396219-7. ISSN 1456-4351.

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Offizielle URL: http://www.mit.jyu.fi/scoma/cm3/index.php#top

Kurzfassung

The project “Next Generation Train” (NGT), initiated by the German Aerospace Center (DLR), faces the question of how to reduce travel times of future trains, while also improving the safety, passenger comfort and environmental aspects [1]. Part of this project is the prediction of thermal comfort in the NGT passenger cabin consisting of an upper and a lower deck. The geometry of the middle car cabin is presented in Fig. 1. For the prediction of the thermal comfort numerous thermal sources have to be taken into account in the flow simulations, one of which is the passenger itself. In our former work [2] we studied the air flow and the thermal comfort in the upper level of train cabin. The present paper focuses on numerical simulations of the air flow including heat transport, thermal radiation and the thermal comfort of passengers in both levels of the NGT cabin. The computations have been performed by coupling solutions of the Reynolds-averaged Navier-Stokes (RANS) equations, obtained with the Computational Fluid Dynamics (CFD) code OpenFOAM, with the heat transport within the passengers' predicted with the finite-element code THESEUS-FE, developed by P+Z Engineering GmbH. With the latter one, the bodies of passengers were modelled based on various layers with different heat transport characteristics, taking into account effects like blood flow, heat transfer through skin and clothing as well as activity levels and ambient humidity. Based on these computations the thermal comfort of passengers in the cabin was simulated and analysed. In particular the thermal comfort depends on the air flow, the temperature distribution and the thermal radiation in a specific cabin configuration.

elib-URL des Eintrags:https://elib.dlr.de/95961/
Dokumentart:Konferenzbeitrag (Vortrag)
Zusätzliche Informationen:The selected papers to be submitted by August 15, 2015 will follow a peer review process and will be published tentatively by Springer-ECCOMAS.
Titel:Numerical Simulation of the Thermal Comfort in a Double Decker Train Cabin
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Konstantinov, Mikhailmikhail.konstantinov (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Wagner, Clausclaus.wagner (at) dlr.dehttps://orcid.org/0000-0003-2273-0568NICHT SPEZIFIZIERT
Datum:2015
Referierte Publikation:Ja
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Seitenbereich:Seiten 35-39
Verlag:University Printing House, Jyäskylä
Name der Reihe:Book of Abstracts
ISSN:1456-4351
ISBN:978-951-396219-7
Status:veröffentlicht
Stichwörter:train cabin, thermal comfort model, CFD, cabin air flow
Veranstaltungstitel:CM3 conference 2015
Veranstaltungsort:yväskylä, Finnland
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:25. - 27. May 2015
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Verkehr
HGF - Programmthema:Bodengebundener Verkehr (alt)
DLR - Schwerpunkt:Verkehr
DLR - Forschungsgebiet:V BF - Bodengebundene Fahrzeuge
DLR - Teilgebiet (Projekt, Vorhaben):V - Next Generation Train III (alt)
Standort: Göttingen
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > Fluidsysteme
Hinterlegt von: Micknaus, Ilka
Hinterlegt am:29 Mai 2015 14:20
Letzte Änderung:20 Mär 2024 12:11

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