Инд. авторы:	Коробицын В.А.
Заглавие:	Моделирование кавитационного обтекания тел
Библ. ссылка:	Коробицын В.А. Моделирование кавитационного обтекания тел // Вычислительные технологии. - 2015. - Т.20. - № 5. - С.85-96. - ISSN 1560-7534. - EISSN 2313-691X.
Внешние системы:	РИНЦ: 24498156;
Реферат:	rus: Приведены результаты исследований течения идеальных сжимаемых и несжимаемых жидкостей с переменными границами, контактирующих с твердыми телами в плоских и осесимметричных пространствах постоянной и переменной связности. Численно моделируется процесс начального формирования пузыря при кавитационном обтекании плоской пластины. В решении одновременно присутствуют области одномерного стационарного и двумерного нестационарного течений, а также область одномерного течения в окрестности центра симметрии пластины. Численно исследован процесс заполнения подводной осесимметричной шахты. Смоделирован эффект гидродинамического удара при отрыве газового пузыря от шахтной полости. eng: The research addresses the development of efficient mathematical models and algorithms which described interaction between solids and liquids with bubbles. Work in this direction was initiated by demands from the industry. A technological basis for the construction of the algorithmic finite difference models for fluid flows around rigid and elastic bodies was developed. The problem was examined in 2D space with variable connectivity areas which include free and contact boundaries. The results are used in the civil and defence fields. The author conducted the numerical simulations of fluid flows in multiply connected domains. Currently, research in this direction is actively progressing. The research is also aimed at the development of the discrete numerical models and algorithms for mathematical modeling of multiphase flows in 2D and 3D media with contact discontinuities and free surfaces. A study how gas cavities in a fluid affect the flow around an axially symmetric rigid body was conducted. A construction of models for rotation of axisymmetric bodies in such flows leading to the formulation of numerical methods was presented. The effect of the hydrodynamic shock appeared when a bubble was released from the shaft gas cavity was confirmed numerically. The software complex designed for mathematical modeling of multiphase flows in the multiply liquid medium in the vicinity of axisymmetric bodies was developed.
Ключевые слова:	свободная поверхность; каверна; кавитация; многосвязность; non-spherical gas bubble; Potential fluid flow; потенциальное течение жидкости; несферический газовый пузырь; Multiply connected domains; cavitation; cavern; free surface;
Издано:	2015
Физ. характеристика:	с.85-96
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