Experiments on the enhancement of compressible mixing via streamwise vorticity. II - Vortex strength assessment and seed particle dynamicsThe effect of streamwise vorticity on compressible axisymmetric mixing layers is examined using vortex strength assessment and seed particle dynamics analysis. Experimental results indicate that the particles faithfully represent the dynamics of the turbulent swirling flow. A comparison of the previously determined mixing layer growth rates with the present vortex strength data reveals that the increase of turbulent mixing up to 60 percent scales with the degree of swirl. The mixing enhancement appears to be independent of the compressibility level of the mixing layer.
Document ID
19930040835
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Naughton, J. W. (NASA Langley Research Center Hampton, VA, United States)
Cattafesta, L. N. (NASA Langley Research Center Hampton, VA, United States)
Settles, G. S. (Pennsylvania State Univ. University Park, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1993
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
AIAA PAPER 93-0742
Meeting Information
Meeting: AIAA, Aerospace Sciences Meeting and Exhibit