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用有限元方法分析计算了等边三角形断面管在四种流动条件下的速度分布，其结果与Ｂｏｕｓｓｉｎｅｓｑ解和有关的解析解基本一致，证明了这种方法是正确的，并可应用于分析其它异形断面管内的速度分布．同时也为异形断面流道的工程设计开辟了一条途径．
The velocity distribution of the equilateral triangular cross-section tube under the four flow conditions was analyzed and calculated by finite element method. The results are in good agreement with the Boussinesq solution and the related analytical solutions, which proves that the method is correct and can be applied to analyze other Speed profile in profiled pipe. At the same time, it also opens up a way for engineering design of profiled cross section flow channel.