629.762 Numerical evaluation of body added mass coefficients introduced by means of acceleration potentials, for the case of slightly compressible liquids

Plyusnin A. V. (Bauman Moscow State Technical University/JSC MIC NPO Mashinostroyenia)

ADDED MASS, ACCELERATION POTENTIAL, INCOMPRESSIBLE LIQUID, COMPRESSIBLE LIQUID, ACOUSTICAL APPROACH


doi: 10.18698/2309-3684-2019-4-1530


It is demonstrated that all 36 added mass and inertia coefficients of a body located in an unbounded ideal incompressible liquid may be introduced for the momentary state of rest by using acceleration potentials instead of classical velocity potentials specifying generally not-existent irrotational unseparated flows. The meaning of this conception is investigated with respect to real liquids having the compressibility property, by means of a numerical experiment fulfilled in the framework of an acoustical approach.


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Плюснин А.В. Численный расчет коэффициентов присоединенных масс тела, движущегося в слабо-сжимаемой жидкости. Математическое моделирование и численные методы. 2019. № 4. с. 15–30.



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