Cell-Centered Multigrid with Higher-Order Transfer Operators in waLBerla
نویسندگان
چکیده
Higher-order intergrid transfer operators used within cell-centered multigrid can improve the convergence properties of the multigrid method compared to low-order operators. In this thesis those operators are analyzed and incorporated into the LSE (linear systems of equation) module of the waLBerla software framework. The aim is to provide a solver for Poisson and Poisson-Boltzmann partial di erential equations in order to simulate electrokinetic e ects as occurring in micro-channels. The combinations of trilinear and Kwak prolongation each plus constant restriction obtain best convergence as well as performance results emerging out of a series of test runs.
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