液压元件异形断面流道速度分布的有限元分析

Finite Element Analysis of Velocity Distributions in No-Circular Cross-Section Duct of Hydraulic Component

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 finite element method is employed to analyze and calculate the velocity distributions of the equilateral triangle cross-section duct for four different flow conditions. The results obtained have been compared with that computed by Boussinesq formula and the relevant analytical formula, and the results are in very good agreement with each other, this shown that the method used here is correct and can be applied to analyze other kinds no-circular conduits. The method also make another way to design the no-circular cross-section duct in engineering.