Oscillations of cylinders in a linearly stratified fluid

被引：7
作者：
E. V. Ermanyuk
N. V. Gavrilov
机构：
[1] Lavrent'ev Institute of Hydrodynamics,
[2] Siberian Division,undefined
[3] Russian Academy of Sciences,undefined
来源：
Journal of Applied Mechanics and Technical Physics | 2002年 / 43卷 / 4期
关键词：
Fourier; Mathematical Modeling; Fourier Transform; Mechanical Engineer; Velocity Vector;
D O I：
10.1023/A:1016037227753
中图分类号：
学科分类号：
摘要：
The paper studies theoretically and experimentally hydrodynamic loads that act on horizontally placed cylinders of rhombic and square cross sections, oscillating harmonically in a linearly stratified fluid. An analytical solution is found with the use of affine similitude. Hydrodynamic force coefficients were evaluated experimentally from Fourier transforms of records of damped oscillations in a time—frequency region. It is shown that for polygonal contours, hydrodynamic loads change abruptly if the slope of the polygon sides coincides with the slope of the internal‐wave group velocity vector.
引用
收藏
页码：503 / 511
页数：8
相关论文
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