有限模型

The model of the discrete ordinates method and the finite volume method in multi-dimensional orthogonal coordinates, and body-fitted coordinates is established to solve the radiative transfer equations in absorbing, scattering media.

建立了离散坐标法及有限体积法、正交坐标系多维，贴体坐标系多维吸收、散射性介质内的辐射传递计算模型。研究非灰体粒子系内辐射传递及将其简化为灰介质系的有效方法。

This research selects L9(34) orthogonal array to establish nine groups finite element model, and analyzes the deformation of the central point with ANSYS, and finds out the optimum design with Taguchi Methods.

应用田口法L9(34)直交表规划并建立九组有限元素分析模型，再以ANSYS分析其中心点的变形量，所得到的结果再以田口法找出最佳设计参数组合。

The material job and main conclusion are as follows:(1)A simple boundary orthogonalization procedure independence grids generation method is put forward on the base of algebraic grid generation method; Data structure and computational model on interface are established aiming at blocks of structured grids.(2) SIMPLE procedure is established in nonorthogonal grids by use of the finite volume method and in-depth discusses on special topic such as boundary condition in nonorthogonal grids, deferred correction method and grads compute on calculational nodes, and so on.

本文完成的具体工作和主要结论如下： 1以代数网格生成方法为基础提出了一种简单的、可独立于网格生成方法之外的边界正交化技术；针对分区结构网格系统建立了分区交界面处的数据结构与计算模型； 2利用有限体积方法在非正交同位网格系统中建立了SIMPLE求解算法，对非正交网格系统中的边界条件、延迟修正技术及计算节点的梯度计算等专题进行了深入讨论。

A numerical model based on nonlinear shallow water equations and finite volume method is developed, which can calculate the overtopping discharge of oblique and multidirectional wave on sloping seawall.

本文以非线性浅水方程为基本公式，有限体积法为数值方法建立了可以计算斜向和多向不规则波在斜坡堤上越浪量的数值模型。

In this paper, the stray light and ghost image caused by multi-reflection in high power infrared optical systems are analyzed and discussed, and the comprehensive method incorporating paraxial approximation and real ray trace is presented; the data structure of binary tree is used in the storage of interdata so that the storage problem of huge-size data is resolved.

本文主要研究了大功率红外光学系统中光学表面多重反射而形成的杂散光及其数学模型与计算方法，提出了将近轴近似法和有限光线追迹法相结合的综合分析方法；同时在数据存储方式上采用二叉树这种数据结构，巧妙地解决了鬼像分析中海量的中间数据存储的问题。

By analyzing the problem of hydrological 3D spatial dispersion in 3D finite differential numeric simulation of porous groundwater flow, as well as discontinuous spatial distribution and asymmetric thickness of porous aquiferous strata and partitive groundwater stratum, the paper presents the GIS-based technique of 3D spatial dispersion of porous aquiferous stratum system. Besides, the paper puts forward the 3D spatial dispersion method of irregular hexahedral unit based on GIS to guarantee to the greatest degree the uniqueness of the stratum types among the dispersed units and improve the precision of 3D spatial dispersion.

分析了目前孔隙地下水流三维有限差分数值模拟中对含水层系统三维空间离散存在的问题，针对自然界孔隙含水层与隔水层空间分布的不连续性与厚度的不均匀性，研究了基於GIS的孔隙含水层系统三维空间离散实现的技术路线，提出了基於GIS与不规则六面体元的孔隙含水层系统的三维空间离散方法，最大限度地保证了离散体元中含水层类型的单一性，提高了孔隙地下水流模拟模型三维空间离散的精度。

By analyzing the problem of hydrological 3D spatial dispersion in 3D finite differential numeric simulation of porous groundwater flow, as well as discontinuous spatial distribution and asymmetric thickness of porous aquiferous strata and partitive groundwater stratum, the paper presents the GIS-based technique of 3D spatial dispersion of porous aquiferous stratum system .

分析了目前孔隙地下水流三维有限差分数值模拟中对含水层系统三维空间离散存在的问题，针对自然界孔隙含水层与隔水层空间分布的不连续性与厚度的不均匀性，研究了基于GIS的孔隙含水层系统三维空间离散实现的技术路线，提出了基于GIS与不规则六面体元的孔隙含水层系统的三维空间离散方法，最大限度地保证了离散体元中含水层类型的单一性，提高了孔隙地下水流模拟模型三维空间离散的精度。

To obtain more detailed and accurate temperature distribution inside large size hydrostatic bearing, a simulation method was present, combined with a given example of prevalent applied large size hydrostatic bearing in heavy equipment. It consisted of three dimensional numerical model and boundary condition of hydrostatic sliding way and hydrostatic sliding way inside 3-D flow. The model equations were solved by the Finite Volume Method and by selecting segregated solver of FLUENT according to CFD principle. The more accurate results of temperature rise distribution on periodic surface are obtained. The effect of partial important parameters on temperature distribution was analyzed.

为了能够数值模拟出较详细和较准确的大尺寸静压轴承内部流体的温升分布，以重型装备中所广泛应用的大尺寸静压轴承为研究对象，建立了模拟静压轴承本体及轴承内部三维流动的数学模型及边界条件；利用计算流体动力学原理，采用有限体积法并选取FLUENT中的分离式求解器进行求解，得出了轴承周期端面较准确的不对称温度分布，并分析了部分重要参数对温度分布的影响。

This paper mainly uses the tactics method of the evolutionary game namely replicator dynamics and the ESS under the boundedly rational conditions, with the hawk and pigeon model including the factor of power conflict , and case analysis method , which have carried on deep analysis to the course of the power conflict between the superior and the subordinate in company's political behavior, it draw superior with in what it is subordinate terms adopt tough offensive hawk strategy, adopt pigeon's strategy under some conditions , namely how to exercise one's own power.

本文主要用博弈论中进化博弈即有限理性条件下的复制动态和进化稳定策略方法，用加入权力冲突因素的鹰鸽博弈模型，以及案例分析的方法，对公司政治行为中上下级之间权力冲突的过程进行了深入的分析，得出了上司与下属在什么条件下采用强硬的进攻性的鹰战略，在什么条件下采用鸽战略，即如何行使各自的权力。

The three-dimensional calculation model by means of finite difference analysis software based on the weathered rock slope of Liu-Wu highway at K45+950 was used to analysis the stability of the high slope during the course of excavation, and the result of the support plane and the optimized protection plan were evaluated.

根据六武高速公路K45＋950段风化岩质边坡的实际情况，通过有限差分软件建立三维计算模型，分析研究段高边坡开挖过程中的稳定性，并对支护方案进行评价，优化加固方案。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。