Proceedings of the International Conference on Coastal Engineering | |
CIRCULATION KINEMATICS IN NONLINEAR LABORATORY WAVES | |
Tae-in Kim1  Robert T. Hudspeth2  W. Sulisz3  | |
[1] Dept. of Civil Engrng., Korean Military Academy;Ocean Engrng. Program, Dept. of Civil Engrng., Oregon State University;Inst. of Hydroengineering, Polish Academy of Sciences | |
关键词: nonlinear waves; laboratory waves; circulation; wave kinematics; circulation kinematics; | |
DOI : 10.9753/icce.v20.%p | |
学科分类:建筑学 | |
来源: Coastal Engineering Research Council | |
【 摘 要 】
A weakly nonlinear solution is presented for the two-dimensional wave kinematics forced by a generic wavemaker of variable-draft. The solution is valid for both piston and hinged wavemakers of variable draft that may be double articulated. The second-order propagating waves generated by a planar wave board are composed of two components; viz., a Stokes second-order wave and a second-harmonic wave forced by the wavemaker which travels at a different speed. A previously neglected time-independent solution that is required to satisfy a kinematic boundary condition on the wavemaker as well as a mixed boundary condition on the free surface is included for the first time. A component of the time-independent solution is found to accurately estimate the mean return current (correct to second-order) in a closed wave flume. This mean return current is usually estimated from kinematic considerations by a conservation of mass principle.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912020439887ZK.pdf | 176KB | download |