Since 1978
Published in Sarov (Arzamas-16), Nizhegorodskaya oblast

RUSSIAN FEDERAL
NUCLEAR CENTER -
ALL-RUSSIAN RESEARCH INSTITUTE
OF EXPERIMENTAL PHYSICS
 
 Русский |  English
ABOUT EDITORIAL BOARD PUBLICATION ETHICS RULES FOR AUTHORS AUTHORS ARCHIVE MOST RECENT ISSUE IN NEXT ISSUE PAPER OF THE YEAR




METHOD OF CONTACT BOUNDARY COMPUTATION FOR IRREGULAR POLYHEDRAL GRIDS IN TIM TECHNIQUE

S. S. Sokolov, A. V. Yalozo
VANT. Ser.: Mat. Mod. Fiz. Proc. 2005. Вып.4. С. 38-45.

Development of a simulator allowing to calculate contact interaction of solids on irregular polyhedral Lagrangian grids in three-dimensional approximation is considered in the paper. Contact boundary of solids is described with the help of triangulated surface obtained by triangulation of solids surfaces used in TIM technique calculations. Specially developed algorithms are used to form and keep this surface. Algorithm of inelastic collision is posited in calculation algorithm for interaction of two triangular surfaces. The results of test calculations showing efficiency of calculation technique for contact boundary movement on methodical and test problems are presented. The developed algorithm for calculation of contact boundary movement allows to expand the class of simulated problems in 3D-statement in TIM technique.



CONSTRUCTION TECHNIQUE FOR A POLYHEDRAL SHEET GRID ON THE BASIS OF A MULTANGULAR IRREGULAR GRID

A. A. Voropinov, S. S. Sokolov, A. I. Panov
VANT. Ser.: Mat. Mod. Fiz. Proc. 2005. Вып.4. С. 46-52.

Construction technique for an irregular three-dimensional grid on the basis of a two-dimensional regular quadrangular grid or an irregular multangular grid is described. Construction of a two-dimensional grid is realized by partitioning of domains into subdomains, filling of each domain by a grid, overlapping of transformations and joining of subdomains into one countable domain. Construction of a three-dimensional grid is carried out per sheet by relocating of a two-dimensional grid along a specified vector in space or by its turning around a specified axis. Both the initial two-dimensional grid and the grid obtained after calculating of initial movement stage using two-dimensional technique may serve as an initial grid. Both techniques allow to construct grids for several countable domains.










[ Back ]


 
 
 
© FSUE "RFNC-VNIIEF", 2000-2024