Compressibility effects in free shear layersHigh-Reynolds-number compressible free shear layers were studied experimentally to explore the effects of compressibility on the turbulence field. A reduction in both the level and the lateral extent of turbulence fluctuations with increasing convective Mach number (Mc) (reported earlier for Mc of 0.51 and 0.64) is much higher at Mc of 0.86. The higher-order moments of turbulence fluctuations such as skewness and flatness show that the intermittency due to the excursion of large-scale structures into the free streams at the edge of shear layers was significantly reduced (both in the level and the extent) due to increased Mc.
Document ID
19900032929
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Samimy, M. (Ohio State University Columbus, United States)
Elliott, G. S. (Ohio State Univ. Columbus, OH, United States)