数值计算

The result of simulation indicated: Under static state, the resultant velocity of airflow in jet room of model 3 is twice over the velocity of the former model.

数值计算结果显示，静态条件下，模型3中热电阻丝所处截面上气体的合速度是原来模型的2.3倍。

The wall function is adopted such that a resultant stream-wise velocity, U, is expressed by a local friction velocity at a first grid point to the wall of the computation domain.

和实测资料的对比验证了数值计算和边界处理技术的合理可靠性，并进一步分析复式断面明渠二次流运动的流动结构和特性。

Easy5 provides accurate, sure multi-domain moulding and model of impulsive fleshly systems. Using Easy5, whatever of the most reputable companies in the concern are evaluating grouping take action with CAE to turn fleshly prototypes, revilement cost, and qualify their creation utilization process.Dynamic systems, those systems whose activity as a duty of instance is important, are typically circumscribed using first-order figuring equations.

MSC Easy5诞生于波音公司，是由各学科领域富有经验的工程师和数值计算专家根据实际的工程问题和需求合作开发的，经过近30年的不断积累和大量工程问题的检验，发展成为独一无二的控制与多学科动态系统仿真分析工具，可谓波音公司工程仿真经验的结晶，被广泛应用于航空航天、国防、汽车、工程设备、重型机械等工业领域。

Considering the two facts mentioned above, the best tilt angle is 2. The influence of gas injected to turbulent water and total heat transfer factor in various Reynold number is investigated.

通过对燃气加热和水浴传热过程进行数值计算，考察了喷射气体在不同雷诺数下对水浴湍流以及对总传热系数的影响。

The experimental results of erosion under different rib geometry and ribbing form are in good agreement with computational ones.

首次对设置不同形状、不同排列方式抗磨肋条的壁面进行颗粒两相流的冲击磨损试验，证实了数值计算与理论分析所获结果的准确性。

All computations were executed with finite volume analysis in single computational domain,and hexahedron map mesh is applied in triangle and scallop riblet,and tetrahedron free mesh is applied in blade one.B-L two layers model and Reynolds stres...

三种沟槽具有相同的特征尺寸，顶点间距s=0.1mm，沟槽尖顶到谷底高度h=0.05mm，与光滑表面相比减阻效果分别为3.2%、9.1%、9.7%，数值计算结果和风洞与油槽实验结果有较好的吻合。

This paper presents the design for wind-induced vibration control of roof truss, with the calculation results and experiment performance of energy dissipation damper given.

以合景大厦为工程背景，介绍了屋顶构架风振控制设计，并给出了基于弯曲错动耗能的阻尼片的试验性能分析及屋顶构架控制的数值计算结果。

When using Runge - Kutta method in digital simulation for continuous systems, in order to ensure the stability of numerical computation and make simulation results having enough accuracy, the step - change strategy is usually adopted.

在使用龙格一库塔方法对连续系统进行数字仿真时，为了保证数值计算的稳定性以及仿真结果具有足够的精度，通常采用变步长策略。

In the analysis, a nonlinear wave vibration equation of the thin cylindrical shell including damping and items due to geometric nonlinearities was established and then transformed by Galerkin's method. With different combinations of modes different nonlinear differential equations in modal coordinates were obtained. The Runge Kutta method was used to solve the equations numerically and some features of nonlinear wave vibration were discussed.

在研究过程中，首先，考虑阻尼并引入几何非线性项，建立薄壁圆柱壳的非线性波动方程，然后，采用Galerkin方法对波动方程进行转换，选取不同的模态组合，得到相应模态坐标下的非线性微分方程，最后用Runge-Kutta法进行数值计算并对圆柱壳的非线性波动振动特性进行了分析。

Thus, the spherical-crown and saddle-shaped surfaces were demonstrated. Consequently, the basic rules and key technology of bending forming using plasma arc in practical work were obtained and the application level of the flexible forming using plasma arc had been further improved. The effects of the main parameters including power, scanning speed, scanning distance and scanning sequence had been investigated.

对成形中出现的棱角效应进行了机理分析和数值计算，结果表明棱角效应是板材沿扫描线方向受几何约束产生了较小的压应变及在扫描线上、下表面的收缩量不同所造成；提出了通过分段扫描解决棱角效应的方法，明显提高了成形质量。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。