数值方程

With the ordinary boundary conditions, the numerical solution was presented for the problem of axisymmetric buckling.

得到形式上简化了的屈曲控制方程。在比较简单的边界条件下，进行了轴对称屈曲问题的数值求解。

Stability is one of the basic problems for numerical solution of wave equations.

稳定性问题是数值求解波动方程的基本问题。

Based on Bernoulli equation of unsteady flow, a random walk model is presented firstly for numerical simulation of unsteady flow in river networks.

首次从非恒定流能量方程出发，建立随机游动模型，用蒙特卡罗方法数值模拟大型河网非恒定水流运动。

In this paper, based on the Bessel function, an Ordinary Differential Equation was derived for time-domain Green function and its gradients in this paper. A new efficient calculation method based on solving ODE is proposed.

在探索求解精度和计算效率的矛盾中，提出了结合求解常微分方程的节点制表、节点间插值的快速计算Gre en函数的方法并据此开发了一套三维深水时域Green函数的数值计算程序。

The evolution of flow patterns are presented at different interaction stages and the bifurcate shock waves , distorted flame fronts and induced vortices are discussed according to the calculated results.

基于带化学反应的Navier Stokes方程和有关的热力学和反应动力学数据，利用改进的VLS格式，对甲烷空气混合物中激波与火焰的相互作用进行了数值模拟。

IN CHAPTERR. THREE,we study the wavelet numerical solution of simply-supportedboundary value problem of biharmonic equation.

第三章，我们考察了双调和方程简支边值问题的非平稳小波数值解。

Based on linear bending theory of thin elastic plate and fundamental solution constructed with the general solution principle of biharmonic equation, a meshless method was developed for establishing a computational format of numerical solution of thin plate bending.

基于弹性薄板的线性弯曲理论和重调和方程的一般解理论构造的基本解，建立无网格法求解薄板弯曲问题的数值计算格式。

Firstly, we discuss the boundary value problem of one dimensional biharmonic equation in an interval and its variational problem,multiresolution analysis in the Sobolev space , then solve it with wavelet-Galerkin methods.

首先本文讨论了一维双调和方程边值问题及其相应的变分问题，定义Sobolev空间的多分辨分析，用小波–伽辽金方法进行数值求解，两组基下得到的系数矩阵为七对角阵和块状对角阵。

The grid generation technique for body_fitted coordinate system by means of numerical solution of biharmonic equations is studied, then the topical H_type grid and the flow field is generated and simulated numerically, respectively.

本文对利用双调和方程微分法生成贴体坐标网格的技术进行了探讨和尝试，生成了典型的H型网格，并对流场进行了数值模拟。

The binomial deliverability equation is the ordinary method of calculating the gas well′s open-flow capacity, the key is determining the coefficient.

气井二项式产能方程是计算气井无阻流量的常用方法，其关键在于确定系数值。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新