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Subgrid-Scale Modeling of Relaminarizing Mixed Convection in a Vertical Channel

Wetzel, Tim and Wagner, Claus (2016) Subgrid-Scale Modeling of Relaminarizing Mixed Convection in a Vertical Channel. 24th International Congress of Theoretical and Applied Mechanics (ICTAM), 21. - 26. Aug. 2016, Montréal, Canada.

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Official URL: http://www.ictam2016.org/


Large Eddy Simulations using an eddy-viscosity and a scale similarity subgrid-scale model are performed in comparison with Direct Numerical Simulations in order to assess the models' capabilities with respect to relaminarization effects. The considered case of mixed convection in a vertical channel is adopted from Kasagi & Nishimura and shows distinct features in the flow close to the heated and cooled channel walls caused by buoyancy. An analysis of the development of coherent structures is performed in order to discern the models with regard to relaminarization effects occuring on the heated channel wall as observed in DNS.

Item URL in elib:https://elib.dlr.de/102867/
Document Type:Conference or Workshop Item (Speech)
Additional Information:http://www.ictam2016.org/side_program/scientific_program/aboutsciprog_e.shtml
Title:Subgrid-Scale Modeling of Relaminarizing Mixed Convection in a Vertical Channel
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Series Name:Conference Proceedings
Keywords:mixed convection, large eddy simulation, channel flow
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
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:12 Jan 2017 16:25
Last Modified:12 Jan 2017 16:25

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