Unsteady free surface flow above a moving circular cylinder

被引：7
|
作者：
Kostikov, V. K. [1 ,2 ]
Makarenko, N. I. [1 ,2 ]
机构：
[1] Lavrentyev Inst Hydrodynam, Ak Labrentyeva Av 15, Novosibirsk, Russia
[2] Novosibirsk State Univ, Pirogova Str 1, Novosibirsk, Russia
来源：
JOURNAL OF ENGINEERING MATHEMATICS | 2018年 / 112卷 / 01期
基金：
俄罗斯基础研究基金会;
关键词：
Circular cylinder; Free surface flow; Small-time asymptotics; SUBMERGED CYLINDER; IMPULSIVE MOTION; WATER ENTRY; EXIT;
D O I：
10.1007/s10665-018-9962-x
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A problem on non-stationary free surface flow of infinitely deep ideal fluid generated by the motion of a submerged body is considered. The water wave problem is reduced to the integral-differential system of equations for the functions defining free surface shape, normal, and tangential velocity components on the free boundary. Small-time asymptotic solution is constructed for the case of circular cylinder that moves with constant acceleration from rest. The role of non-linearity is clarified by analysis of this approximate solution which describes the formation of added mass layers, splash jets, and finite amplitude surface waves.
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页码：1 / 16
页数：16
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