Application of mosaic-skeleton approximations in the simulation of three-dimensional vortex flows by vortex segments
Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki, Tome 50 (2010) no. 5, pp. 937-948

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The computations in a vortex method for three-dimensional fluid dynamics simulation are accelerated by applying mosaic-skeleton approximations of matrices in the velocity computations. A modified vortex segment method is proposed in which mosaic-skeleton matrix approximations are effectively used to solve the problem of a vorticity field developing in an unbounded three-dimensional domain and in separated flow problems. Examples of the numerical solution of model fluid dynamic problems, such as the motion of a pair of vortex rings, the flow past a hemisphere, and the flow past an octahedral cylinder, are given that illustrate the capability of accelerating the computations while preserving the qualitative and quantitative description of the flow.
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     author = {A. A. Aparinov and A. V. Setukha},
     title = {Application of mosaic-skeleton approximations in the simulation of three-dimensional vortex flows by vortex segments},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
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     publisher = {mathdoc},
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     number = {5},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_2010_50_5_a11/}
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A. A. Aparinov; A. V. Setukha. Application of mosaic-skeleton approximations in the simulation of three-dimensional vortex flows by vortex segments. Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki, Tome 50 (2010) no. 5, pp. 937-948. http://geodesic.mathdoc.fr/item/ZVMMF_2010_50_5_a11/