ALGORITHMS OF PREPROCESSING SINGULARITIES IN GEOMETRIC MODELS TO GENERATE SURFACE TRIANGULAR GRIDS IN THE "LOGOS" SOFTWARE PACKAGE PREPROCESSOR
O. N. Borisenko, A. N. Lukichev, A. O. Evstifeeva, D. M. Pankratov, T. V. Tsalko, A. G. Giniyatullina
VANT. Ser.: Mat. Mod. Fiz. Proc 2020. Вып.3. С. 40-52.
The description of algorithms for preprocessing the geometric model singularities in the boundary representation (B-REP) which have been implemented in the automatic generator of surface triangular grids is presented. The generator is intended for constructing grid models to solve aerohydrodynamics problems using the "Logos" software package. The surface grid optimization algorithms implemented to lower the original geometry quality requirements are considered. Keywords: the "Logos" software package, preprocessor, generator of a surface triangular grid, B-REP, geometric singularities, partition of the geometric model edges, contour of a face, surface curvature, closure of contours.
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