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On the Influence of the Aspect Ratio on Structure Formation in Turbulent Mixed Convection

Schmeling, Daniel and Winter, Stefan and Bosbach, Johannes and Wagner, Claus (2016) On the Influence of the Aspect Ratio on Structure Formation in Turbulent Mixed Convection. 24th International Congress of Theoretical and Applied Mechanics (ICTAM), 21. - 26. Aug. 2016, Montréal, Canada.

Full text not available from this repository.

Official URL: https://myictam2016.zerista.com/event/member?item_id=4836352

Abstract

Mixed convection in a cuboidal convection cell is studied under variation of the aspect ratio Γxz = L/H in the range 0.2 ≤ Γxz ≤ 4 at Pr ≈ 0.7, Re ≈ 8.6∙103, Ra ≈ 2.4∙108 and Ar ≈ 4.5 by temperature measurements at certain locations. It is shown that the evaluation of dipole moments from the local temperatures leads to a quantity, which possibly indicates the formation of large-scale structures. Further it is found, that the number of convection rolls, which are formed in the sample, is less or equal in mixed convection as compared to pure thermal convection for all investigated Γxz.

Item URL in elib:https://elib.dlr.de/102919/
Document Type:Conference or Workshop Item (Speech)
Title:On the Influence of the Aspect Ratio on Structure Formation in Turbulent Mixed Convection
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schmeling, Danieldaniel.schmeling (at) dlr.deUNSPECIFIED
Winter, StefanWinter.Stefan (at) dlr.deUNSPECIFIED
Bosbach, Johannesbosbach.johannes (at) dlr.deUNSPECIFIED
Wagner, Clausclaus.wagner (at) dlr.deUNSPECIFIED
Date:2016
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:mixed convection, aspect ratio, large-scale circulation
Event Title:24th International Congress of Theoretical and Applied Mechanics (ICTAM)
Event Location:Montréal, Canada
Event Type:international Conference
Event Dates:21. - 26. Aug. 2016
Organizer:www.ictam2016.org
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
Deposited By: Bachmann, Barbara
Deposited On:04 Oct 2016 11:46
Last Modified:04 Oct 2016 11:46

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