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TECHNICAL PAPERS

Subgrid-Scale Modeling of Turbulent Convection Using Truncated Navier-Stokes Dynamics

[+] Author and Article Information
J. A. Domaradzki, S. Radhakrishnan

Aerospace and Mechanical Engineering, University of Southern California, Los Angeles, CA 90089-1191

J. Fluids Eng 124(4), 823-828 (Dec 04, 2002) (6 pages) doi:10.1115/1.1514206 History: Received March 12, 2002; Revised June 24, 2002; Online December 04, 2002
Copyright © 2002 by ASME
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References

Figures

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The large-eddy simulation procedure. The superscripts (N) and (2N) refer to the LES and TNS resolution, respectively.
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Time variation of Nu for the case CTNS2
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Nu across the convective half-layer at Ra=6.3×105. Solid line: case UDNS; dashed line: case CTNS1; dashed-dotted line: case CTNS2; dashed-asterisk line: averaged Nu from experiments of Deardorff and Willis 27.
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Mean temperature 〈T〉(z) for the case CTNS5. Solid line: model; asterisks: experiment.
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Rms temperature fluctuation for the case CTNS5. Solid line: model; asterisks: experiment.
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Rms horizontal velocity fluctuation for the case CTNS5. Solid line: model; asterisks: experiment.
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Rms vertical velocity fluctuation for the case CTNS5. Solid line: model; asterisks: experiment.

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