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study of three-dimensional effects on vortex breakdownThe incompressible axisymmetric steady Navier-Stokes equations in primitive variables are used to simulate vortex breakdown. The equations, discretized using a second-order, central-difference scheme, are linearized and then solved using an exact LU decomposition, Gaussian elimination, and Newton iteration. Solutions are presented for Reynolds numbers, based on vortex-core radius, as high as 1500. An attempt to study the stability of the axisymmetric solutions against three-dimensional perturbations is discussed.
Document ID
19890026196
Document Type
Conference Paper
Authors
Salas, M. D.
(NASA Langley Research Center Hampton, VA, United States)
Kuruvila, G.
(Vigyan Research Associates, Inc. Hampton, VA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1988
Subject Category
FLUID MECHANICS AND HEAT TRANSFER
Meeting Information
ICAS Congress(Jerusalem)
Distribution Limits
Public
Copyright
Other