本文用保角变换法探讨平底闸下出流问题,首先建立了复势的参变数表示式:■式中 f(T)由边界条件决定。在求解函数f(T)时本文根据边界条件得到f(T)的级数展开式,并通过分析确定它应是实系数的奇次幂级数,其中各项的系数由一个共轭三角级数方程决定。本文作者转到求级数f(T)的近似解,得到 In this paper, the conformal transformation method is used to explore the outflow problem under the flat bottom gate. Firstly, the parameter of the complex potential is established: ■ where f (T) is determined by the boundary conditions. In the solution of the function f (T), we get the expansions of f (T) according to the boundary conditions and determine that it should be an odd-power series of real coefficients by analyzing, where the coefficients of each item are given by a conjugate triangular level Number of equations to decide. The author turns to find the approximate solution of the series f (T), which is obtained