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Fast, conservative schemes for the full potential equation applied to transonic flows (1979)

Holst, T. L. ; Ballhaus, W. F.

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Publication Date: 2011-08-17

Description: Implicit approximate factorization techniques (AF) are investigated for the solution of matrix equations resulting from finite-difference approximations to the full potential equation in conservation form. For transonic flows, an artificial viscosity, required to maintain stability in supersonic regions, is introduced by an upwind bias of the density. Two implicit AF procedures are presented, and their convergence performance is compared with that of the standard transonic solution procedure: successive line overrelaxation (SLOR). Subcritical and supercritical test cases are considered. Results indicate a substantial improvement in convergence rate for AF schemes relative to SLOR.

Keywords: AERODYNAMICS

Type: AIAA Journal; 17; Feb. 197

Format: text

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