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Critical effects of downstream boundary conditions on vortex breakdownThe unsteady, compressible, full Navier-Stokes (NS) equations are used to study the critical effects of the downstream boundary conditions on the supersonic vortex breakdown. The present study is applied to two supersonic vortex breakdown cases. In the first case, quasi-axisymmetric supersonic swirling flow is considered in a configured circular duct, and in the second case, quasi-axisymmetric supersonic swirling jet, that is issued from a nozzle into a supersonic jet of lower Mach number, is considered. For the configured duct flow, four different types of downstream boundary conditions are used, and for the swirling jet flow from the nozzle, two types of downstream boundary conditions are used. The solutions are time accurate which are obtained using an implicit, upwind, flux-difference splitting, finite-volume scheme.
Document ID
19920062854
Document Type
Conference Paper
Authors
Kandil, Osama (NASA Langley Research Center Hampton, 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, 1992
Subject Category
AERODYNAMICS
Report/Patent Number
AIAA PAPER 92-2601
Meeting Information
AIAA Applied Aerodynamics Conference(Palo Alto, CA)
Funding Number(s)
CONTRACT_GRANT: NAG1-994
Distribution Limits
Public
Copyright
Other