Abstract

Flux-vector splitting and flux-difference splitting techniques are applied to Cauchy-Riemann equations. It is shown that for both techniques efficient multigrid methods can be constructed based on relaxation algorithms. The flux-difference splitting technique is applied to steady one-dimensional Euler equations and the resulting set of discrete equations is solved by a relaxation algorithm. The solution for transonic flow is free of transition points in the shock region. By analogy with the Cauchy-Riemann equations, it is concluded that this technique is extendable to two dimensions and that it can be used in the multigrid method.

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