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采用分块耦合技术，利用泊松方程生成三维贴体网格．用ＡＬＥ法对一截面为圆形的三分支管三维稳态湍流流场进行了数值模拟，并与激光多普勒测量结果进行比较．计算显示：模拟结果与试验结果符合较好，能反映三分支管的流动特性．
The block coupling technique is used to generate the three-dimensional body-fitted grid using Poisson’s equation. The three-dimensional steady-state turbulent flow field of a three-branch tube with a circular cross section was numerically simulated by ALE method and compared with the laser Doppler measurement results. The calculation shows that the simulation results are in good agreement with the experimental results and reflect the flow characteristics of the three-branch pipe.