A comparative study of several compressibility corrections to turbulence models applied to high-speed shear layersSeveral recently published compressibility corrections to the standard k-epsilon turbulence model are used with the Navier-Stokes equations to compute the mixing region of a large variety of high speed flows. These corrections, specifically developed to address the weakness of higher order turbulence models to accurately predict the spread rate of compressible free shear flows, are applied to two stream flows of the same gas mixing under a large variety of free stream conditions. Results are presented for two types of flows: unconfined streams with either (1) matched total temperatures and static pressures, or (2) matched static temperatures and pressures, and a confined stream.
Document ID
19910057967
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Viegas, John R. (NASA Ames Research Center Moffett Field, CA, United States)
Rubesin, Morris W. (NASA Ames Research Center Moffett Field, CA, United States)