Actions for Compressible homogeneous shear : Simulation and modeling

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Compressible homogeneous shear : Simulation and modeling

Author
Hussaini, M. Y.
Published
Feb 1, 1992.
Physical Description
1 electronic document
Additional Creators
Sarkar, S. and Erlebacher, G.
Online Version

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Unclassified, Unlimited, Publicly available.
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Summary
Compressibility effects were studied on turbulence by direct numerical simulation of homogeneous shear flow. A primary observation is that the growth of the turbulent kinetic energy decreases with increasing turbulent Mach number. The sinks provided by compressible dissipation and the pressure dilatation, along with reduced Reynolds shear stress, are shown to contribute to the reduced growth of kinetic energy. Models are proposed for these dilatational terms and verified by direct comparison with the simulations. The differences between the incompressible and compressible fields are brought out by the examination of spectra, statistical moments, and structure of the rate of strain tensor.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19920011272.
Accession ID: 92N20514.
NASA-CR-189611.
AD-A248141.
ICASE-92-6.
NAS 1.26:189611.
Terms of Use and Reproduction
No Copyright.
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