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JOURNALS // Zhurnal Vychislitel'noi Matematiki i Matematicheskoi Fiziki // Archive

Zh. Vychisl. Mat. Mat. Fiz., 2016 Volume 56, Number 8, Pages 1491–1505 (Mi zvmmf10441)

This article is cited in 8 papers

Numerical analysis of the dynamics of distributed vortex configurations

V. N. Govorukhin

Southern Federal University, Rostov-on-Don, Russia

Abstract: A numerical algorithm is proposed for analyzing the dynamics of distributed plane vortex configurations in an inviscid incompressible fluid. At every time step, the algorithm involves the computation of unsteady vortex flows, an analysis of the configuration structure with the help of heuristic criteria, the visualization of the distribution of marked particles and vorticity, the construction of streamlines of fluid particles, and the computation of the field of local Lyapunov exponents. The inviscid incompressible fluid dynamic equations are solved by applying a meshless vortex method. The algorithm is used to investigate the interaction of two and three identical distributed vortices with various initial positions in the flow region with and without the Coriolis force.

Key words: vortex dynamics, meshless numerical methods, fluid structures.

UDC: 519.634

Received: 09.07.2015

DOI: 10.7868/S004446691608007X


 English version:
Computational Mathematics and Mathematical Physics, 2016, 56:8, 1474–1487

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