Title: Development of Wall Models for LES Based on Nonlinear Stochastic Estimation
Authors: Abel, Markus
Stojkovic, Dragan
Breuer, Michael 
Language: eng
Subject (DDC): 000 Informatik, Information & Wissen, allgemeine Werke
500 Naturwissenschaften
600 Technik
Issue Date: 2004
Publisher: Springer
Document Type: Conference Object
Source: Abel, M., Stojković, D., Breuer, M. (2004). Development of Wall Models for Large-Eddy Simulation Based on Nonlinear Stochastic Estimation. In: Friedrich, R., Geurts, B.J., Métais, O. (eds) Direct and Large-Eddy Simulation V. ERCOFTAC Series, vol 9. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-2313-2_12
Journal / Series / Working Paper (HSU): ERCOFTAC Series
Volume: 9
Page Start: 99
Page End: 108
Published in (Book): Direct and Large–Eddy Simulation V
Publisher Place: Dordrecht
Conference: Fifth International ER- COFTAC Workshop on DNS and LES: DLES-5, Munich University of Tech- nology, Germany, Aug. 27–29, 2003
We present results on a priori estimation of LES wall models by nonlinear stochastic estimation (NLSE). The results are given in form of nonparametric, generalized additive models. First results on a posteriori LES are shown. The analyzed data are taken from a DNS of plane channel flow. The applied method allows for quantitative identification of important model terms and reveals physical mechanisms of the near-wall region. Investigated models are generalizations of known algebraic models. With usual linear methods the resulting functions cannot be found. Additional terms like the wall-normal velocity component and the streamwise pressure gradient are included in the wall model. We find that different terms become important in different regions near the wall.
Organization Units (connected with the publication): Strömungsmechanik 
ISBN: 978-90-481-6575-9
Publisher DOI: 10.1007/978-1-4020-2313-2_12
Appears in Collections:6 - Bibliographic Data - Publications of the HSU Researchers (before HSU)

Show full item record

CORE Recommender

Google ScholarTM




Items in openHSU are protected by copyright, with all rights reserved, unless otherwise indicated.