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Investigation of the slip boundary condition in wall-modeled LES

Bae, H. J. and Lozano-Durán, A. and Moin, P. (2016) Investigation of the slip boundary condition in wall-modeled LES. Annual Research Briefs . pp. 75-86. PMCID PMC6800698. https://resolver.caltech.edu/CaltechAUTHORS:20210315-143345631

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Abstract

The near-wall resolution requirement to accurately resolve the boundary layer in wall-bounded flows remains one of the largest obstacles in large-eddy simulation (LES) of high-Reynolds-number engineering applications. Chapman (1979) estimated that the number of grid points necessary for a wall-resolved (WR) LES scales as N_(WR) ~ Re^(9/5), where Re is the characteristic Reynolds number of the problem. A more recent study by Choi & Moin (2012), using more accurate correlations for the skin friction coefficients, concluded that N_(WR) ~ Re^(13/7), which is far too expensive for many practical engineering applications and not very different from the N_(DNS) ~ Re^(37/14) scaling required for direct numerical simulation (DNS) where all the relevant scales of motion are resolved.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6800698PubMed CentralArticle
ORCID:
AuthorORCID
Bae, H. J.0000-0001-6789-6209
Lozano-Durán, A.0000-0001-9306-0261
Moin, P.0000-0002-0491-7065
Additional Information:© 2016 Stanford University. This work was supported by NASA under the Transformative Aeronautics Concepts Program, Grant #NNX15AU93A.
Group:GALCIT
Funders:
Funding AgencyGrant Number
NASANNX15AU93A
PubMed Central ID:PMC6800698
Record Number:CaltechAUTHORS:20210315-143345631
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20210315-143345631
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:108437
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:18 Mar 2021 23:47
Last Modified:19 Mar 2021 21:41

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