Kolmogorov-like spectra in decaying three-dimensional supersonic flows
- 1 June 1994
- journal article
- Published by AIP Publishing in Physics of Fluids
- Vol. 6 (6) , 2133-2142
- https://doi.org/10.1063/1.868217
Abstract
A numerical simulation of decaying supersonic turbulence using the piecewise parabolic method (PPM) algorithm on a computational mesh of 5123 zones indicates that, once the solenoidal part of the velocity field, representing vortical motions, is fully developed and has reached a self-similar regime, a velocity spectrum compatible with that predicted by the classical theory of Kolmogorov develops. It is followed by a domain with a shallower spectrum. A convergence study is presented to support these assertions. The formation, structure, and evolution of slip surfaces and vortex tubes are presented in terms of perspective volume renderings of fields in physical space.Keywords
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