圆柱体在深层流体表面下的自由运动

IF 0.5 4区工程技术 Q4 MECHANICS

Journal of Applied Mechanics and Technical Physics Pub Date : 2025-04-08 DOI:10.1134/S0021894424050067

A.E. Golikov, N.I. Makarenko

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引用次数: 0

摘要

研究了理想无限深流体中圆柱在产生的水动力载荷作用下的非定常非线性运动问题。采用了一种方法，将初始数学问题的解简化为确定所寻找的自由曲面形状的函数的等效积分微分方程组的解，用于确定自由表面上流体速度的法向分量和切向分量，以及未知的圆柱体运动轨迹。构造了描述圆柱从静止状态开始运动的解的初始渐近曲线（以时间为单位）。

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FREE MOTION OF A CYLINDER UNDER THE SURFACE OF A DEEP FLUID

A nonlinear problem of unsteady motion of a circular cylinder in an ideal infinitely deep fluid under the action of arising hydrodynamic loads is considered. A method of reducing the solution of the initial mathematical problem to the solution of an equivalent integrodifferential system of equations for the function determining the shape of the sought free surface for the normal and tangential components of the fluid velocity on the free surface, and for the unknown trajectory of cylinder motion is used. The initial (in terms of time) asymptotic curve of the solution, which describes the cylinder motion from the state at rest is constructed.

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来源期刊

Journal of Applied Mechanics and Technical Physics 物理-力学

CiteScore

1.20

自引率

16.70%

发文量

审稿时长

4-8 weeks

期刊介绍： Journal of Applied Mechanics and Technical Physics is a journal published in collaboration with the Siberian Branch of the Russian Academy of Sciences. The Journal presents papers on fluid mechanics and applied physics. Each issue contains valuable contributions on hypersonic flows; boundary layer theory; turbulence and hydrodynamic stability; free boundary flows; plasma physics; shock waves; explosives and detonation processes; combustion theory; multiphase flows; heat and mass transfer; composite materials and thermal properties of new materials, plasticity, creep, and failure.