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The convergence behaviour of multigrid is investigated for compressible Euler equations discretized on a block-structured grid, partitioned into many blocks. It is found that with one additional boundary relaxation and an extra update of the overlap region multigrid convergence is not much affected by grid partitioning for many splittings investigated. For a splitting into very many blocks (256) with...
For the simulation of technological and natural processes in specific application domains, efficient calculation software solving differential equation systems on grid-based computational models is available, especially in the area of computer-aided engineering (CAE). To handle a so-called `multiphysics' problem, for example the fluid flow and metal forming process in a twin-roll casting arrangement...
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