LAGRANGIAN GRID SURFACES SMOOTHING
A. V. Yalozo
VANT. Ser.: Mat. Mod. Fiz. Proc 2006. Вып.4. С. 106-114.
In addition to the algorithms of velocity field developed, this work considers the technique which allows smoothing the surfaces of polygonal and polyhedral Lagrangian grids. An attempt has been made to work out the mechanism which allows supporting the grid smoothness without changing the velocity of node movement. The surface smoothing is carried out by node shifting in some optimum position. The new position of smoothed node on the surface is chosen from the condition of volume conservation to prevent mass loss. Since the surface nodes are topologically connected with nodes inside the grid, internal node smoothing is realized.
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