NTRS - NASA Technical Reports Server
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.
Salas, M. D. (NASA Langley Research Center Hampton, VA, United States) Kuruvila, G. (Vigyan Research Associates, Inc. Hampton, VA, United States)
August 14, 2013
January 1, 1988
FLUID MECHANICS AND HEAT TRANSFER