数值计算

The thermal effects, produced by the high energy laser in a beam control system, are numerically analyzed in this paper.

采用数值计算方法分析了较高能量密度激光在光束控制系统内所产生的热效应对远场光斑质量和能量分布的影响。

In past logging modeling, conductivity is generally assumed homogeneous in each rectangle element or invariable in z direction or piecewise homogeneous in z direction.

以往电测井有限单元法的数值计算中往往假定电导率分块均匀，或者在纵向分段均匀，或者在纵向上不变。

To investigate vertical competition in the two-echelon serial supply chain, a M/M/1 queue model is established, the efficiency, firms'decision variables and the customer service level between centralized and decentralized control are compared; a supply chain horizontal competition model is established, the impacts of horizontal competition on performance of the supply chain are analyzed by using theoretical and numerical methods.

针对两级串联供应链中的垂直竞争问题，建立了M／M／1排队模型，对集中控制与分散控制下，供应链的效率、厂商的决策变量和用户服务水平进行了比较分析；建立了供应链水平竞争模型，采用理论分析和数值计算方法，研究了水平竞争对供应链绩效的影响。

The Conclusion can be drawn that the method can be applied to the determination of the temperature of a hot wire embedded at the center of a cylinder.

经数值计算验证，本方法可对薄壁高温的加热圆柱体轴线上的热导线的温度给出高精度的定量检测结果。

This is a starting of developing the prototype of hybrid system modeling software independently.

这是自主开发混杂系统建模平台的一次有益尝试，在深入了解建模思想和方法的基础上，对语言的抽象与定义、混杂系统建模算法、语言编译、数值计算和系统集成进行了探索。

Aiming at the question of undercut in high-speed welding,this paper presented the model of hydrostatics,mathematics calculation and experience of melten-pool.

针对高速焊接条件下的咬边问题，概述了熔池金属流体静力学模型、数值计算模型以及经验模型，并分析了各自的特点。

The operating process of liquid apogee engine (N2O4/MMH) thrust chamber is studied. By applying the SIMPLE algorithm with staggered grid, the numerical model is established. The atomization mechanism and decomposition combustion of hypergolic rocket propellant are considered in the model.

研究了远地点发动机(N2O4/MMH)的推力室工作过程，考虑了自燃推进剂的雾化、蒸发以及化学反应流动过程，采用交错网格系统的SIMPLE算法，得到了不同边区冷却流量对推力室的内流场和燃烧效率的影响结果，数值计算的结果与理论分析相符合，为推力室工作过程的稳定性分析提供了重要参考。

The results show that the present design of TPS can meet the requirements of the hypersonic aircraft.

整个数值计算过程对高超声速飞行器热结构的设计与分析提供了一些有益的参考。

A simple formula about the maximum atoms inthe icosahedral clusters and the range of interaction potential was proposed and proved to be rightby numerical method.

二十面体团簇所包含的最大原子数和有效势程之间的关系可以用一简单的关系式来描述。数值计算的结果与我们的理论相一致。

Numerical computation is to simulate on the atmospheric circulation of the Northern Hemisphere with this model under ideal boundary conditions.

从该模型出发可导出地球流体力学方程，用这一模型对理想边界条件下的北半球大气环流进行了数值计算。

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