The interaction between wave-current and the horizontal cylinder located near the free surface is studied experimentally and numerically. Experiments of wave-current interaction on cylinder are conducted in the circulating water channel. The current loads, wave loads and wave-current loads on the cylinder with varying submergence depths are measured. The numerical model applied in this paper is based on RANS equations solved by finite volume method. Based on the simulation results, the free surface deformation and wave reflection in the interaction between wave-current and cylinder are investigated. Then, peak values of the wave force and wave-current force on the cylinder with various axis depths are discussed in detail. The effects of wave reflection and blockage on the peak value of the force are discussed based on the comparison between the measured force and the force calculated by the Morison’s equation. In general, wave reflection increases the peak value of the force while the wave blockage decreases it. Under the combining effect of wave reflection and wave blockage, the variation of forces on the cylinder with the submergence depth is different for partially submerged and fully submerged cases.
BAI Junli,MA Ning,GU Xiechong
. Wave-Current Loads on the Horizontal Cylinder with Varying Submergence Depths[J]. Journal of Shanghai Jiaotong University, 2018
, 52(8)
: 938
-945
.
DOI: 10.16183/j.cnki.jsjtu.2018.08.009
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