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Near-wall grid adaptation for turbulent flows.

Alrutz, Thomas and Knopp, Tobias (2006) Near-wall grid adaptation for turbulent flows. International Journal of Computing Science and Mathematics. INDERSCIENCE.

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Official URL: http://www.inderscience.com

Abstract

This paper considers grid-adaptation techniques for the boundary-layer region of hybrid meshes, where the mesh is of regular structure consisting of prismatic resp. hexaedral elements. The method helps to improve convergence, accuracy and reliability of aerodynamic simulations for the two possible types of wall-boundary conditions for viscous flows, i.e., integrating the flow equations down to the wall (no-slip) or using wall-functions. The underlying algorithms and their parallelization are described and the method is applied to 3D aerodynamic configurations. Moreover, accuracy and performance gain using wall-functions with grid-adaptation are discussed for transonic airfoil flows.

Item URL in elib:https://elib.dlr.de/48857/
Document Type:Article
Title:Near-wall grid adaptation for turbulent flows.
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Alrutz, ThomasUNSPECIFIEDUNSPECIFIED
Knopp, TobiasUNSPECIFIEDUNSPECIFIED
Date:15 December 2006
Journal or Publication Title:International Journal of Computing Science and Mathematics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Publisher:INDERSCIENCE
Status:Accepted
Keywords:Turbulent flows; no-slip; wall functions; grid adaptation; aerodynamics.
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Concepts & Integration (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > CASE
Deposited By: Alrutz, Thomas
Deposited On:26 Jun 2007
Last Modified:27 Apr 2009 13:51

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