AN ALGORITHM OF CORRECTING A GRID FOR A REGION FORMED BY SURFACES OF REVOLUTION WITH PARALLEL AXES OF REVOLUTION
O. V. Ushakova
VANT. Ser.: Mat. Mod. Fiz. Proc 2018. Вып.1. С. 30-41.
The paper offers an algorithm for correcting boundary nodes of a structured grid as applied to the boundary of a region formed by surfaces of revolution with parallel axes of revolution. The use of a correction algorithm is a necessary step of constructing grids for regions of interest and during the grid reconstruction it allows moving boundary nodes not over linear surfaces of cell faces of the original grid constructed for the region discretization, but directly along the region boundary (surfaces of revolution). The algorithm presented in the paper can be used independently for correcting a grid, which nodes fell out of the region boundary. The algorithm in Ñ++ implemented in software systems for constructing 3D computational grids and in an individual code for correcting a grid with respect to a region boundary significantly improves the efficiency of mathematical modeling of multimaterial media. Keywords: grids, boundary nodes, surfaces of revolution, projection.
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