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Preprints of the Keldysh Institute of Applied Mathematics, 2024, 043, 25 pp.
DOI: https://doi.org/10.20948/prepr-2024-43 (Mi ipmp3253) 		 
Non-conservation of momentum in the FMM method in the PHANTOM code

M. Sh. Potashov
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DOI: https://doi.org/10.20948/prepr-2024-43
Abstract: The article discusses the implementation of the fast multipole method (FMM) in the PHANTOM code. It has been demonstrated that for any given pair of mutual interaction cells in a kd-tree, Newton's third law holds. However, momentum is not preserved for the entire system as a whole.
Keywords: smoothed particle hydrodynamics, SPH, tree code, fast multipole method, FMM, PHANTOM, N-body.
Document Type: Preprint
Language: Russian
Citation: M. Sh. Potashov, “Non-conservation of momentum in the FMM method in the PHANTOM code”, Keldysh Institute preprints, 2024, 043, 25 pp.
Citation in format AMSBIB
\Bibitem{Pot24}
\by M.~Sh.~Potashov
\paper Non-conservation of momentum in the FMM method in the PHANTOM code
\jour Keldysh Institute preprints
\yr 2024
\papernumber 043
\totalpages 25
\mathnet{http://mi.mathnet.ru/ipmp3253}
\crossref{https://doi.org/10.20948/prepr-2024-43}
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    		Препринты Института прикладной математики им. М. В. Келдыша РАН
     
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