Smoothing of Grid Discontinuities Across Block Boundaries
This article summarizes the work completed at CERFACS in the sub-task 1.3.3 concerning the problem of slope discontinuities occurring at block interfaces. The starting point was a multi-block three-dimensional mesh generator developed by H. Ewetz, at KTH, Stockholm, Sweden. It was based on a solid modeling approach and a variational formulation to optimize the shapes of the blocks (referencesand ). This code has been completely rewritten in order to increase its speed and to add new functionals. Graphic features have also been added to permit an interactive visualization of the generated mesh. Unfortunately, the results obtained with the new code were not always of the best quality, and moreover, computing time was very long. A more classical approach based on elliptic smoothing was then used with more success and will be also presented hereafter.
KeywordsControl Point Laplace Equation Finite Volume Method Mesh Generation Mesh Point
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