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Application of a dynamic subgrid-scale model to turbulent recirculating flows (1993)

Street, R. L. ; Zang, Y. ; Koseff, J. R.

In: CASI

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Publication Date: 2019-06-28

Description: The dynamic subgrid-scale model of Germano et al. is implemented in a finite volume formulation and applied to the simulation of turbulent flow in a three-dimensional lid-driven cavity at Reynolds number of 7500. The filtering operation is carried out in physical space, and the model coefficient is calculated locally. The computed mean and rms velocities as well as the Reynolds stress are compared with experimental data. It is shown that backscatter from small to large scales is necessary to sustain turbulent fluctuations. The model is being applied to the simulation of turbulent flows in a stratified and rotating environment in complex geometries.

Keywords: FLUID MECHANICS AND HEAT TRANSFER

Type: Annual Research Briefs, 1992; p 85-95

Format: application/pdf

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