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We have developed an automatic hexahedral mesh generator, and evaluated the quality of the generated mesh. It was confirmed that the ratio of the longest and the shortest diagonal lengths of the elements affected the convergence of the ICCG solver. Therefore, for improving the mesh quality, it is necessary to develop the smoothing method in the automatic hexahedral mesh generator.
Overlapping elements have previously been employed to connect two surfaces or subdomains meshed separately. This method has been developed in 2-D and in 3-D for plane surfaces. The paper extends the overlapping method to arbitrary non-planar surfaces; this is accomplished by introducing new shape functions. The proposed method can be applied to account for movement without any undesirable distortion...
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