Knopp, Tobias (2010) Improved Wall Functions Based on the 1D Boundary Layer Equations for Flows with Significant Pressure Gradient. In: New Results in Numerical and Experimental Fluid Mechanics VII Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 112. Springer Verlag, Berlin Heidelberg. pp. 51-58. doi: 10.1007/978-3-642-14243-7_7. ISBN 978-3-642-14242-0. ISSN 1612-2909.
![]() |
PDF
- Only accessible within DLR
115kB |
Official URL: http://www.springer.com
Abstract
This paper presents an improved wall function method for unstructured flow solvers using the DLR TAU Code based on the one-dimensional boundary-layer equations for wall-parallel velocity, including pressure gradient term and convective term, and turbulence quantities in wall normal direction. For each wall node, this system of equations is integrated numerically on an embedded subgrid between wall node and first node above the wall. The method is verified for a flat plate turbulent boundary layer flow at zero pressure gradient. Then the method is applied to the flow in a diffusor at adverse pressure gradient without separation to assess different levels of approximation of the boundary layer model for wall-parallel velocity and to demonstrate the improvement of results compared to universal wall-functions.
Item URL in elib: | https://elib.dlr.de/66660/ | |||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Document Type: | Contribution to a Collection | |||||||||||||||||||||
Title: | Improved Wall Functions Based on the 1D Boundary Layer Equations for Flows with Significant Pressure Gradient | |||||||||||||||||||||
Authors: |
| |||||||||||||||||||||
Date: | 2010 | |||||||||||||||||||||
Journal or Publication Title: | New Results in Numerical and Experimental Fluid Mechanics VII | |||||||||||||||||||||
Refereed publication: | Yes | |||||||||||||||||||||
Open Access: | No | |||||||||||||||||||||
Gold Open Access: | No | |||||||||||||||||||||
In SCOPUS: | No | |||||||||||||||||||||
In ISI Web of Science: | No | |||||||||||||||||||||
Volume: | 112 | |||||||||||||||||||||
DOI: | 10.1007/978-3-642-14243-7_7 | |||||||||||||||||||||
Page Range: | pp. 51-58 | |||||||||||||||||||||
Editors: |
| |||||||||||||||||||||
Publisher: | Springer Verlag, Berlin Heidelberg | |||||||||||||||||||||
Series Name: | Notes on Numerical Fluid Mechanics and Multidisciplinary Design | |||||||||||||||||||||
ISSN: | 1612-2909 | |||||||||||||||||||||
ISBN: | 978-3-642-14242-0 | |||||||||||||||||||||
Status: | Published | |||||||||||||||||||||
Keywords: | wall-function; pressure-gradient | |||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | |||||||||||||||||||||
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 > C²A²S²E - Center for Computer Applications in AeroSpace Science and Engineering | |||||||||||||||||||||
Deposited By: | Knopp, Dr.rer.nat. Tobias | |||||||||||||||||||||
Deposited On: | 07 Dec 2010 08:32 | |||||||||||||||||||||
Last Modified: | 27 Feb 2015 15:45 |
Repository Staff Only: item control page