Numerical simulation of transition in a decelerating boundary layerTransition in a decelerating flat-plate boundary layer is numerically simulated up to the beginning of three-dimensional breakdown, and the results are compared with an experiment. The adverse pressure gradient induced by deceleration increases the growth rate of disturbances and allows transition at lower Reynolds numbers. The primary instability is characterized by a wave packet, which undergoes three-dimensional distortion. Lambda vortices are locally observed, but they are not aligned with respect to the flow direction.
Document ID
19890022797
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Yang, Kyung Soo (Stanford Univ. CA, United States)
Ferziger, Joel H. (Stanford University CA, United States)
Spalart, Philippe R. (NASA Ames Research Center Moffett Field, CA, United States)
Reed, Helen L. (Arizona State University Tempe, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1988
Subject Category
Fluid Mechanics And Heat Transfer
Meeting Information
Meeting: IUTAM Symposium on Turbulence Management and Relaminarisation