Preconditioned HLLE Method for Flows at All Mach Numbers

A two-dimensional preconditioned multigrid Navier-Stokes solver has been developed for all Mach number viscous flows. For the computation of all Mach number flows, a local preconditioning technique with a modified reference velocity was used to extend the Harten-Lax-van Leer-Einfeldt (HLLE+) scheme,...

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Bibliographic Details
Published in:AIAA journal 2006-11, Vol.44 (11), p.2645-2653
Main Authors: Park, Soo Hyung, Lee, Jae Eun, Kwon, Jang Hyuk
Format: Article
Language:English
Subjects:
Aircraft
Compressible flows
shock and detonation phenomena
Computational methods in fluid dynamics
Exact sciences and technology
Flow velocity
Fluid dynamics
Fundamental areas of phenomenology (including applications)
General subsonic flows
Physics
Studies
Supersonic and hypersonic flows
Viscosity
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Summary:A two-dimensional preconditioned multigrid Navier-Stokes solver has been developed for all Mach number viscous flows. For the computation of all Mach number flows, a local preconditioning technique with a modified reference velocity was used to extend the Harten-Lax-van Leer-Einfeldt (HLLE+) scheme, which has good characteristics for compressible viscous flows. The developed methods used to compute several representative steady problems. Grid refinement and parametric studies are performed to verify the performance. The results show that the preconditioned HLLE+ scheme can be successfully applied to a wide variety of flows and that the implicit multigrid solver provides good convergence for the test problems. [PUBLICATION ABSTRACT]
ISSN:0001-1452
1533-385X
DOI:10.2514/1.12176