Publication Abstracts
Chasnov 1991
Chasnov, J.R., 1991: Simulation of the Kolmogorov inertial subrange using an improved subgrid model. Phys. Fluids A, 3, 188-200, doi:10.1063/1.857878.
A subgrid model is developed and applied to a large-eddy simulation of the Kolmogorov inertial subrange. Currently popular subgrid models are derived from models of the turbulent energy equation, resulting in a significant loss of information as a consequence of the statistical averaging performed in going from the Navier-Stokes equation to the energy equation. The subgrid model developed here is based directly on a model of the Navier-Stokes equation. The improved subgrid model contains two terms: an eddy viscosity and a stochastic force. These terms are computed from the EDQNM stochastic model representation of the momentum equation, and from a fully resolved direct numerical simulation. Use of the subgrid model in a forced large-eddy simulation results in an energy spectrum that exhibits a clear k-5/3 power-law subrange with an approximate value Ko = 2.1 of the Kolmogorov constant.
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BibTeX Citation
@article{ch09300d,
author={Chasnov, J. R.},
title={Simulation of the Kolmogorov inertial subrange using an improved subgrid model},
year={1991},
journal={Physics of Fluids A},
volume={3},
pages={188--200},
doi={10.1063/1.857878},
}
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RIS Citation
TY - JOUR ID - ch09300d AU - Chasnov, J. R. PY - 1991 TI - Simulation of the Kolmogorov inertial subrange using an improved subgrid model JA - Phys. Fluids A JO - Physics of Fluids A VL - 3 SP - 188 EP - 200 DO - 10.1063/1.857878 ER -
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