Accelerated Iteration Schemes for Transonic Flow Calculations Using Fast Poisson Solvers

摘要

It is concluded that the use of a fast elliptic solver in combination with relaxation is an effective way to accelerate the convergence of transonic flow calculations, particularly when a marching scheme can be used to treat the supersonic zone in the relaxation process. Other methods of preventing divergence in the supersonic zone should be investigated. Possibly it would be sufficient to sweep only the supersonic zone in the second stage of the iteration. This would lead to further useful savings of computer time.