The method of differential quadrature is demonstrated by solving the two‐dimensional Poisson equation. The results for three test problems are compared with the exact analytical solutions and the numerical solutions obtained by others for the Galerkin, the control‐volume and the five‐point finite difference methods. The method of differential quadrature leads to more accurate results for comparable levels of computational effort.
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Civan et al. (1983) studied this question.
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