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PROGRESS IN SCALE-RESOLVING SIMULATIONS WITH THE DLR-TAU CODE

Probst, Axel and Reuß, Silvia (2016) PROGRESS IN SCALE-RESOLVING SIMULATIONS WITH THE DLR-TAU CODE. Deutscher Luft- und Raumfahrtkongress, 13.-15.September 2016, Braunschweig, Deutschland.

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Official URL: http://www.dlrk2016.dglr.de

Abstract

This paper provides an overview of the recent development of scale-resolving simulation methods in the DLR-TAU code for flow simulations near the border of the flight envelope. On the numerical side, a hybrid low-dissipation low-dispersion discretization scheme is presented that allows for accurate wall-resolved and wall-modelled LES computations and is shown to provide satisfying hybrid RANS/LES predictions of a Delta wing flow on a unstructured mesh. In the field of physical modelling, the grey-area issue of non-zonal hybrid RANS/LES is addressed through a vorticity-sensitive sub-grid filter scale which is shown to improve the prediction of a backward-facing step flow. Moreover, an embedded-LES functionality based on the Synthetic Eddy Method is implemented in TAU and applied to a complex multi-element airfoil flow.

Item URL in elib:https://elib.dlr.de/105936/
Document Type:Conference or Workshop Item (Speech)
Title:PROGRESS IN SCALE-RESOLVING SIMULATIONS WITH THE DLR-TAU CODE
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Probst, Axelaxel.probst (at) dlr.deUNSPECIFIED
Reuß, Silviasilvia.reuss (at) dlr.deUNSPECIFIED
Date:2016
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:scale-resolving simulation, hybrid RANS/LES, TAU-Code
Event Title:Deutscher Luft- und Raumfahrtkongress
Event Location:Braunschweig, Deutschland
Event Type:national Conference
Event Dates:13.-15.September 2016
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > C²A²S²E - Center for Computer Applications in AeroSpace Science and Engineering
Deposited By: Bachmann, Barbara
Deposited On:25 Nov 2016 14:01
Last Modified:25 Nov 2016 14:01

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