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JOURNALS // Izvestiya of Saratov University. Mathematics. Mechanics. Informatics // Archive

Izv. Saratov Univ. Math. Mech. Inform., 2014 Volume 14, Issue 3, Pages 335–340 (Mi isu519)

Mechanics

Simulation of Incompressible Nonviscoussevere Fluid on a Regular Grid in Three-dimensional Space

D. I. Liverovskiy, S. P. Shevirev

Saratov State University, 83, Astrakhanskaya str., Saratov, 410012, Russia

Abstract: This study focuses on modification of the method of Davydov (large particles) in the case of incompressible liquid. We consider the simulation of a heavy incompressible nonviscous fluid by Davydov's modified method in a three-dimensional case. Besides, comparison of the received results with a two-dimensional case is carried out. Formulas of modified Davydovs's method for the case of three spatial dimensions are lead out including difference analogue of the three-dimensional Poisson equation for the pressure. The criterion of stability is generalized. The description of the algorithm for constructing a three-dimensional free surface is provided. Implemented a three-dimensional computer graphics, showing development processes in online mode.

Key words: Davydov's method, fluid flow, method of large particles, free surface, Poisson equation for the pressure, the criterion of stability of difference schemes, symmetric flows.

UDC: 533.6.011

DOI: 10.18500/1816-9791-2014-14-3-335-340



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