Abstract:During numerical simulation of complex geometries and flow depth variations, nonrectangular computational cells are to be generated. However, application of this kind of mesh cause numerical errors.A 3-D model, which was verified and validated before, was used to illustrate the problem in a simple open channel flow. A zigzag computational mesh was used to study the effect of nonrectangular cells on the accuracy of the model. Results showed that water surface and velocity profiles oscillated around the correct … Show more
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