Effect of Wall Boundary Conditions on a Wall-Modeled Large-Eddy Simulation in a Finite-Difference Framework

نویسندگان

چکیده

We studied the effect of wall boundary conditions on statistics in a wall-modeled large-eddy simulation (WMLES) turbulent channel flows. Three different forms condition based mean stress-balance equations were used to supply correct shear stress for wide range Reynolds numbers and grid resolutions applicable WMLES. In addition widely Neumann at wall, we considered case with no-slip which was imposed by adjusting value eddy viscosity wall. The results showed that type utilized had an impact (e.g., velocity profile turbulence intensities) vicinity especially first off-wall point. Augmenting resulted improved predictions near-wall region, should allow use information from point models without additional spatial or temporal filtering. This is easy implement provides simple solution well-known log-layer mismatch

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منابع مشابه

Experimental study of wall boundary conditions for large-eddy simulation

IVAN MARUSIC, GARY J. KUNKEL and FERNANDO PORTÉ­AGEL Journal of Fluid Mechanics / Volume 446 / November 2001, pp 309 ­ 320 DOI: null, Published online: 23 October 2001 Link to this article: http://journals.cambridge.org/abstract_S0022112001005924 How to cite this article: IVAN MARUSIC, GARY J. KUNKEL and FERNANDO PORTÉ­AGEL (2001). Experimental study of wall boundary conditions for large...

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ژورنال

عنوان ژورنال: Fluids

سال: 2021

ISSN: ['2311-5521']

DOI: https://doi.org/10.3390/fluids6030112