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应用三步有限元法结合大涡模拟方法（ＬＥＳ）离散非定常不可压流动的Ｎａｖｉｅｒ－Ｓｔｏｋｅｓ方程，模拟了波浪场中海底管线周围流场及其受力情况，并把数值模拟的结果与物理实验的实测结果进行了比较，两者符合较好．为了检验三维效应的影响，同时进行了二维和三维流场的数值模拟．
The three-step finite element method and the LES discrete Navier-Stokes equations are used to simulate the flow fields and forces around the subsea pipeline in the wave field. The numerical simulation results are compared with the physical The experimental results were compared, both in good agreement. In order to test the effect of three-dimensional effect, two-dimensional and three-dimensional flow field numerical simulations were carried out at the same time.