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computation of steady and unsteady compressible quasi-axisymmetric vortex flow and breakdownThe unsteady, compressible Navier-Stokes equations are used to compute and analyze compressible quasi-axisymmetric isolated vortices. The Navier-Stokes equations are solved using an implicit, upwind, flux-difference splitting finite-volume scheme. The developed three-dimensional solver has been verified by comparing its solution profiles with those of a slender, quasi-axisymmetric vortex solver for a subsonic, isolated quasi-axisymmetric vortex in an unbounded domain. The Navier-Stokes solver is then used to solve for a supersonic quasi-axisymmetric vortex flow in a configured circular duct. Steady and unsteady vortex-shock interactions and breakdown have been captured. The problem has also been calculated using the Euler solver of the same code and the results are compared with those of the Navier-Stokes solver. The effect of the initial swirl has been tentatively studied.
Document ID
19910036981
Document Type
Conference Paper
Authors
Kandil, Osama A.
(Old Dominion Univ. Norfolk, VA, United States)
Kandil, Hamdy A.
(Old Dominion University Norfolk, VA, United States)
Liu, C. H.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
AERODYNAMICS
Report/Patent Number
AIAA PAPER 91-0752
Funding Number(s)
CONTRACT_GRANT: NAG1-994
Distribution Limits
Public
Copyright
Other