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Fourth-order and implicit semi-Lagrangian contouring for geometric moving interface problemsPDE and Applied Math Seminar
|Speaker: ||Ian Sammis, UC Davis|
|Location: ||1147 MSB|
|Start time: ||Tue, Mar 9 2010, 4:10PM|
Semi-Lagrangian contouring provides a single algorithm applicable to a wide variety of moving interface problems. The original semi-Lagrangian solver could attack a wide range of problems, but was limited by piecewise-linear contouring and by an explicit solver for time stepping. We modify the algorithm to address both issues--to improve the contouring to fourth-order accuracy, and to allow implicit time stepping for stiff problems.