基于源面板法浸没圆柱倾斜激励水动力学数值模拟

Numerical simulation of hydrodynamics of submerged cylinder with inclinedexcitation based on source panel method

基于源面板法建立了水下圆柱体倾斜激励的数学模型,数值模拟了浸没圆柱体倾斜激励下圆柱体表面压力与波高的水动力学特性。数值结果表明,圆柱体表面压力和自由面波高随激励频率、振幅及浸没深度的改变而变化。在小振幅倾斜激励下自由面波表现为线性变化规律:当圆柱体浸没深度减小,自由面波高明显增大;当圆柱体浸没深度越大,自由面波高的变化越小。圆柱体上下表面压力呈周期性变化。

This article is based on the source panel method to establish the mathematical model of underwater cylinder tilt incentives,numerical simulation of submerged cylinder inspired tilting cylinder surface pressure and hydrodynamic characteristics of wave height.The numerical results show that high pressure cylinder surface and free surface wave with the excitation frequency,amplitude and submerged depth of the change and change.Free surface wave well under small amplitude tilt incentives for linear change rule.When the cylinder submerged depth decreases,free surface wave height increases obviously.The greater cylinder submerged depth,,the smaller changes the free surface wave height.The cylinder up and down surface pressure is cyclical change.