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Boundary linear integral method for compressible potential flows

โœ Scribed by Z. Fang; I. Paraschivoiu

Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
581 KB
Volume
13
Category
Article
ISSN
0271-2091

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โœฆ Synopsis

A boundary linear integral method based on Green function theory has been developed to solve the full potential equation for subsonic and transonic flows. In this integral method, potential values in the flow region are determined by potential values represented by boundary integrals and a volume integral. The boundary potential values are obtained by implementing the boundary integrals along boundary segments where a linear potential relation is assumed. The volume integral is evaluated in a grid generated by finite element discretization. The volume integral is evaluated only outside the body. Therefore there is no extra boundary treatment required for evaluation of the volume integral. The source term is assumed to be constant in an element integral volume. The volume integral needs to be evaluated only once and can be stored in computer memory for further usage.

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