| Volume 3, Number 3, 2013, Pages 251-263 DOI：10.11948/2013018 |
| A Semi-Lagrangian Runge-Kutta Method for Time-Dependent Partial Differential Equations |
| Daniel X. Guo |
| Keywords:Semi-Lagrangian |
| Abstract: |
| In this paper, a Semi-Lagrangian Runge-Kutta method is proposed to com-pute the numerical solution of time-dependent partial di®erential equations.The method is based on Lagrangian trajectory or the integration from the de-parture points to the arrival points (regular nodes). The departure points aretraced back from the arrival points along the trajectory of the path. The highorder interpolation is needed to compute the approximations of the solutionson the departure points, which most likely are not the regular nodes. On thetrajectory of the path, the similar techniques of Runge-Kutta are applied to theequations to generate the high order Semi-Lagrangian Runge-Kutta method.The numerical examples show that this method works very effient for thetime-dependent partial di®erential equations. |
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