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The elliptic mild slope equation is used to simulate linear wave propagation over variable seabed topography with mild slopes.The governing equation is discretized by the finite difference method.Ba-sed on the BI-CGSTAB technique.an attractive variant of BI-Conjugate Gradients(BI-CG)method,theobtained linear algebraic system of equations is solved.Numerical experiments show that the BI-CGSTABmethod is efficient for solving the elliptic mild slope equation.The results obtained by the BI-CGSTAB-Ba-sed method are much the same as those obtained by other authors with different solution methods,but theconvergence rate is much faster than that of other methods.
The elliptic mild slope equation is used to simulate linear wave propagation over variable seabed topography with mild slopes.The governing equation is discretized by the finite difference method. Ba-sed on the BI-CGSTAB technique. An attractive variant of BI-Conjugate Gradients BI-CG) method, theobtained linear algebraic system of equations is solved. Numerical experiments show that the BI-CGSTABmethod is efficient for solving the elliptic mild slope equation. The results obtained by the BI-CGSTAB-Ba-sed method are much the same as those obtained by other authors with different solution methods, but theconvergence rate is much faster than that of other methods.