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Direct Numerical Simulation of turbulent mixed convection in a vertical channel for the assessment of relaminarization effects on the hot wall

Wetzel, Tim and Wagner, Claus (2015) Direct Numerical Simulation of turbulent mixed convection in a vertical channel for the assessment of relaminarization effects on the hot wall. The 4th International Conference on Turbulence and Interaction, 02. – 06. Nov. 2015, Cargèse, Corsica, France.

Full text not available from this repository.

Official URL: http://ti2015.onera.fr/

Abstract

Buoyancy driven flows play a major role in engineering applications, making it crucial to be able to develop appropriate tools for their simulation. A detailed computation of all scales in flows with industrial relevance, as it is possible with a Direct Numerical Simulation (DNS), requires enormous resources, speaking temporally and computationally. The Large Eddy Simulation (LES) technique has been established as means of reducing the amount of computational resources needed while providing information about the large vortices in a flow by spatial filtering and modeling of the small scales. The LES needs a model of the unresolved scales in the flow in order to yield physically correct results, which needs to be validated against the results of a DNS capturing all essential flow scales. In order to create the data to evaluate different subgrid scale (SGS) models needed for an LES, results of a DNS of turbulent flow with mixed convection through a vertical channel with differentially heated walls is presented here.

Item URL in elib:https://elib.dlr.de/98758/
Document Type:Conference or Workshop Item (Speech)
Additional Information:Final paper will be published in a book of proceedings
Title:Direct Numerical Simulation of turbulent mixed convection in a vertical channel for the assessment of relaminarization effects on the hot wall
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Wetzel, Timtim.wetzel (at) dlr.deUNSPECIFIED
Wagner, Clausclaus.wagner (at) dlr.deUNSPECIFIED
Date:2015
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Series Name:Book of abstracts
Status:Published
Keywords:Turbulence, Direct numerical simulation (DNS), Mixed convection, Channel flow
Event Title:The 4th International Conference on Turbulence and Interaction
Event Location:Cargèse, Corsica, France
Event Type:international Conference
Event Dates:02. – 06. Nov. 2015
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: Micknaus, Ilka
Deposited On:24 Nov 2015 14:12
Last Modified:10 May 2016 23:32

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