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文章利用奇点分布法对近自由表面飞行的二维地效翼进行了理论研究。与固壁不同,自由表面会在地效翼翼的作用下诱导兴波,而且波浪会传播至无穷远处。因此加大了理论分析和数值求解的难度。该工作的难点在于二维奇点在分层流体中运动的格林函数的求解与计算。通过与试验结果、其他数值模拟结果的对比,验证了文中方法的有效性。
In this paper, the singularity distribution method is used to study the two-dimensional ground-effect wing flying near free surface. Unlike solid walls, the free surface induces waves under the effect of the wing of the earth, and the waves propagate to infinity. Therefore, it increases the difficulty of theoretical analysis and numerical solution. The difficulty of this work lies in the solution and calculation of the Green’s function of two-dimensional singularities moving in stratified fluid. By comparing with the experimental results and other numerical simulation results, the validity of the proposed method is verified.