Flow past the irregularities in a pressure conduit

有压管道中凸体绕流的势流一般解可采用解析函数在辅助平面上获得。根据顺直管道势流可获解析解这一事实，在每一离散小间距中假设固壁边界为直线，可获得近似解析解。然后采用变量替换，可获得物理平面上的近似解析解。对拱型、半拱型、平台和三角形凸体绕流进行了计算。计算结果与实验资料吻合良好。

Flow past the irregularities in a pressure conduit

The general solution for potential flow past irregularities im a pressure conduit can be obtained in auxiliary plane by use of analytic functional theory.According to the fact that analytical solution can be obtained for potential flow bounded by the straight lines,the approximately analytical solutions can be got in discrete small intervals in which the solid boundaries are supposed to be straight lines.Then with the use of the substitution of variables.the approximately analytical solution in physical plane can be obtained.The flows past arc,semi-arc,platform and tringle irregularities were calculates.The computed results excellently agree with the experimental data.