An interpolation-based local differential quadrature method to solve partial differential equations using irregularly distributed nodes
To circumvent the constraint in application of the conventional differential quadrature (DQ) method that the solution domain has to be a regular region, an interpolation-based local differential quadrature (LDQ) method is proposed in this paper. Instead of using regular nodes placed on mesh lines in the DQ method (DQM), irregularly distributed nodes are employed in the LDQ method. That is, any spatial derivative at a nodal point is approximated by a linear weighted sum of the functional values...[Show more]
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|Source:||Communications in Numerical Methods in Engineering|
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