APPENDIX A – Non-uniform Spatial Grid
Surge Analysis and the Wave Plan Method
Supplementary Material: Example Problems and Solutions
Appendix A – Problem 7
A.7 The Courant Stability Condition (CFL) is one of the biggest hurdles that forces MOC-based methods to maintain a stringent relationship between the spatial grid spacing and the temporal grid spacing.
a. Why is satisfying CFL condition so important for MOC based methods?
b. How are computed results affected when that condition is ignored?
c. How is WPM able to disregard such requirements (i.e., the stringent relationship between the spatial grid spacing and the temporal grid spacing) and yet obtain stable and accurate results?
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