Unsteady behaviors of two moving bodies through inviscid unbounded liquid
We account both bodies and liquid as a conservative system to explore unsteady motions of two bodies, adopting the Lagrange equation of motion in vector form. Theoretical analysis and numerical results reveal that as two circles initially revolving around each other in an inviscid liquid with a stationary centroid are set to translate,their centroidal trajectory is sinuous and would gradually deviate from the original moving direction. For the rectilinear motion of the bodies in tandem, Galilean relativity is invalid for just two bodies during the hydrodynamic interaction, and their centroid, after initially set in motion, may accelerate and then decelerate, finally approaching a constant speed as far apart from each other.
Unsteady motion added mass two bodies hydrodynamic interactions
Run Sun Hong-yu Ma
Department of Engineering Mechanics,Shanghai Jiao Tong University Shanghai,China
国际会议
9th International Conference on Hydrodynamics(第九届国际水动力学会议 ICHD2010)
上海
英文
1019-1024
2010-10-11（万方平台首次上网日期，不代表论文的发表时间）