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JOURNALS // Sibirskii Zhurnal Vychislitel'noi Matematiki // Archive

Sib. Zh. Vychisl. Mat., 2023 Volume 26, Number 1, Pages 93–100 (Mi sjvm831)

This article is cited in 1 paper

Realization of the adaptation criterion in the grid generation technology for constructions bounded by the surfaces of revolution with parallel axes of revolution

O. V. Ushakovaab

a N.N. Krasovskii Institute of Mathematics and Mechanics of the Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russia
b Ural Federal University named after the First President of Russia B.N. Yeltsin, Ekaterinburg, Russia

Abstract: A realization of an adaptation criterion in the technology of generation of three-dimensional structured grids designed for the numerical solution of differential equations modeling the vortex processes of multi-component hydrodynamics is described. Earlier the adaptation criterion was realized for volumes of revolution and volumes of revolution deformed by other volumes of revolution. The adaptation criterion is realized within a variational approach for the construction of optimal grids satisfying optimality criteria: closeness of the grid to a uniform and orthogonal one and adaptation to a given function. In the realization of the criterion, the technology is supplemented by a new way of boundary nodes computation and an algorithm for the construction of an admissible set for minimization of a discrete functional formalizing the optimality criteria. Examples of grids adapted to a given function and its first derivatives are given.

Key words: adaptation criterion, technology for grid generation, volumes bounded by the surfaces of revolution with parallel axis of revolution.

UDC: 519.6

Received: 07.10.2022
Revised: 07.10.2022
Accepted: 23.11.2022

DOI: 10.15372/SJNM20230107



© Steklov Math. Inst. of RAS, 2024