查询词典 iterative computation

On the basic of above job a mathematical model of simulation turbulent flow with free surface is established and triumphantly applied to numerical computation on 2D spillway and 3D spillway with frusta of brake.

自然界中的流体流动问题一般都具有三维性和湍动性，对于最常见的流体—水则同时还拥有自由表面，水利工程中绕闸墩的泄洪水流、船舶工程中的船体绕流等均具有上述流动的三种特性，这三种特性是计算流体力学领域非常重要的研究内容和方向。

3D integer model of spillway and frusta of brake are established and numerical computation of 3D viscous flow over spillway is completed. The influence of frusta of brake for design parameters such as shape of free surface,pressure on dam,flux coefficient is computed aim at type of frusta of brake and disposal on dam and compute result of different type of frusta and disposal model is compared.

6通过建立溢流坝和闸墩的三维整体模型，完成了对三维过坝水流粘流场的数值计算，针对闸墩的型式及在坝面的布置计算了闸墩对水面线形状、坝面压力、流量系数等设计参数的影响，并将不同墩型与布置形式的计算结果进行比较。

The result show that the position of free surface is higher because of frusta of brake, especial obvious in the head of frusta of brake; flux coefficient and pressure on dam are quite influenced by type of frusta and 3 A type frusta of brake relative to 2 type frusta of brake has bigger flux coefficient and smaller pressure on dam; Obvious influence of ability of discharge flow for different ratio of thickness of frusta and breadth of brake and pressure on dam reduces with increasing ration of thickness of frusta and breadth of brake, while bigger flux coefficient is obtained when tlb = 0.2.(7)The 3D free surface turbulent model established in the paper is comparatively well and truly simulates 3D flow over spillway with frusta of brake and series waterpower computation can be completed aim at different type of dam, type of frusta and disposal on the dam and different water height on peak of

结果表明，闸墩河海大学博士论文的存在抬高了水面线的位置，其中在闸墩头部尤其明显；墩型对流量系数和坝面压力影响较大，3A型闸墩相对于2型闸墩具有更大的流量系数和更小的坝面压力：不同的墩厚闸宽比t/b对泄流能力也将产生显著的影响，随着墩厚闸宽比的增加，坝面压力降低，而当t/b二0.2时溢流坝具有更大的流量系数。7本文建立的三维自由面湍流场模型能够比较准确地模拟带闸墩溢流坝三维过坝水流湍流场，可以针对不同的坝型、墩型、坝面布置形式以及不同的坝顶水头完成系列水力计算，为泄水工程建筑物的设计提供可靠的分析依据

The detailed finite element analytical computation was successfully carried out on this structure and the stress and strain distribution of this structure were obtained under various actual operating conditions, thus laid a foundation for the structural improvement and optimization design of the rear loaded garbage compressing cart.

采用实际测试和变参数描述相结合的方法给出垃圾载荷的数学表达，利用ANSYS进行结构有限元分析调校载荷数学表达中的可变参数，保证了分析计算与实验测试结果的一致性，成功地对该结构进行了详尽的有限元分析计算，获得了该结构在各种实际工况下的应力及变形分布，为后装式压缩垃圾车的结构改进与优化设计打下了基础。

The discussion on the gauge problem which is the point at issue in 3D eddy current computation suggests that the FE solution from 〓, V-ψ formulation without gauge is unique.

本文以RFEC缺损响应和检测机理的电磁场数值分析方法为研究对象，在数学模型、算法和计算技术上进行了研究和探讨。

In GIMPS, different size exponents can require different FFT sizes (Fast-Fourier Transforms, which are where most of the calculations are done) and thus require more computation time compared to smaller numbers.

在GIMPS里，不同大小的任务，FFT的值也会不同，因此，较大的WU所算的时间也会更长。在SOB里有否类似情况出现？

The ground deformation computing problem of goafs of highways is one of the difficult problems in highway construction, and until now there is no perfect computation methods to settle with.

采空区地面变形计算问题是一直困扰通过采空区高速公路建设的难题，之前尚无良好的理论计算方法。

The computation model had 5 parameters, which could be identified by displacement inverse algorithm. At the same time, the ground deformation limits of highways to determine the engineering treatment scope of goafs were provided. On such a basis, the problem could be solved. Finally, a case of Lei-Yi highway was given. The computed results showed that the present method could successfully solve the ground deformation problems of goafs.

用编制的计算程序对来宜高速公路下覆典型的两种采煤形成的采空区坍塌后地面变形进行了计算分析，计算分析结果表明：随机介质理论计算模型应用比较成功，能反映地面移动规律；该处采空区对高速公路的正常使用产生威胁，宜进行适当的工程处理，并确定了工程处理范围。

Flow pattern computation is carried out by using a modified function of stream function Laplace equation proposed by the author, and the flow fields of heterogeneous goafs with complicated shapes and along the boundary direction can meet the condition of orthogonality of flow net, and at the same time the orthogonality can be controlled by the precision of split meshes.

指出用 流函数Laplace方程修正函数，对复杂形状和沿多边界方向非均质的采空区流场计算，仍能满足流网正交，其正交性可通过剖分网格精度来控制。

This design unifies Xinjiang Hua Dianhong the wild goose pond power plant 220kV system actual wiring system to carry on the line protective device the design and the related installation computation.

本设计结合新疆华电红雁池电厂220kV系统实际线路设置进行线路保护装置的设计与相关整定计算。

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。