By means of boundary element method, the pressure distribution problems in petroleum industry are transformed into corresponding boundary integral equation.
借助边界元法将油气藏工程中的多油井生产的压力分布问题转化为相应的边界积分方程。
According to the perturbation theory, a distribution law of matrix element in secular equation is discovered in degenerate state and wave function property of the hydrogen atom.
根据简并态微扰理论和氢原子波函数的性质，得到久期方程中微扰矩阵元的分布规律。
Using finite element methods solves two-dimensional compressible Reynolds equation. As a result, the pressure distribution over the entire seal interface is obtained.
利用有限元素法对间隙内的雷诺方程进行求解，得到了螺旋线槽气体密封端面间隙内气体的压力分布和三维膜压分布图。
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