查询词典 equation of continuity

In section 2, the integral expression, continuity and twice continuous differentiability and integro-differential equation satisfied by the expected discounted penalty at ruin Ф〓 are derived.

在第二节，我们得到了Ф〓的积分表达，连续性及二次连续可微性和积分-微分方程。

The pressure oscillation which can t be tested by continuity equation is prevented by means of a special averaging procedure of contravariant velocity components on control volume faces.

提出了在贴体坐标系中非交错网格的SIMPLE 算法，通过对控制界面上的逆变速度分量作特殊加权平均处理，可避免在非交错网格中产生压力波动而连续性方程又无法检测出来的问题

Therefore at each time we get the roots of this cubic equation, we can decide if we keep or reject each root according to the continuity of the curved surface, the method is as follows: If , the relative cubic plane curve is just a circle, this circle can be gotten by solving .

因此在每次求得该一元三次方程的解时，我们根据曲面的连续性来判断这些根的取舍，方法如下：在处，所得的平面曲线就是圆截线，该圆截线可以由相截得到，即。

A three- dimensional turbulence model in non-orthogonal curvilinear coordinates is proposed to investigate the impacts of vegetation on channel morphology. The model includes vegetation-induced drag force and vegetation density in the control equations to describe the effects of vegetation on flow structure, and solves sediment continuity equation to compute channel geometry.

本文建立曲线坐标系下的三维湍流模型研究水生植物对河道形态的影响，在水流控制方程中加入植物阻力项和植物密度项来描述水生植物对水动力特性的贡献，通过泥沙质量守恒方程求解河道变形，在适体网格中求解模型的控制方程。

Considering the electrovalence, the curve of water consumption and the reliability of water supply, this paper respectively sets up the model based on the maximal flux and the model based on the expectation flux. It takes yearly expenditure converting value and yearly cistern converting value as target function and takes continuity equation, velocity of flow and compression resistance of cast iron pipeline as restrictions and sets up the PGA model on optimal design of water supply networks.

考虑到峰谷电价、用水量变化曲线及用水可靠性因素的影响，分别建立了以最高时流量设计管网的模型和以期望时流量设计管网的模型，以年费用折算值加上清水池年造价折算值为目标函数，以连续性方程、管中流速和铸铁管耐压值等为约束条件，进行并行遗传算法对给水管网优化设计的实现。

On the basis of these, the author analyze stress-strain model of rock and soil which is under the groundwater effect, the continuity equation of groundwater when the rock and soil is deformed, and the relation between permeability coefficient tensor of rock and soil and stress field, and brings up the mathematical model of stress-seepage coupling fields.

在此基础上，论文阐明了考虑地下水作用的岩土体本构模型、考虑岩土体变形的地下水流动连续方程和岩土体渗透系数张量与应力场的关系，提出了新的应力-渗流耦合场数学模型。

Taking the continuity equation of air-powder flow into consideration, the apparent sonic velocity of two-phase flow can be given.

考虑两相流连续方程确定出两相流的实际表观音速，并且与两相平衡流理论计算所得的理论音速进行了比较，仅为其0.5~0.7倍。

The two flows can be solved simultaneously and no boundary condition is needed on the interface between them. The implicitly limitation of Continuity Equation makes it sure that the velocity and pressure of the two flows on the interface keep to equal at any time.

数值计算时，波浪与孔隙流的交界面不需要给定边界条件，而是通过连续方程的隐式约束，保证两种流态在边界上的速度和压力匹配，实现了波浪场与孔隙流场的同步耦合。

The moving packed bed is discussed by the continuity equation of fluid dynamic. It uses the Eulerian-Eulerian two phase model to discuss the phenomenon of countercurrent flow.

将高炉内移动的固体堆料床以描述连续体的流体力学方程式加以探讨，本文应用Eulerian-Eulerian二相流模型，探讨固体与气体的逆相流行为。

The thesis introduces summarily the differential form of Darcys Law, and derives the continuity equation of groundwater when it is incompressible and irrotional.

论文针对达西定律的微分形式，推导出对于不可压缩流体且无旋时的地下水连续性方程，确定了地下水自由面的边界条件，并求解出考虑降雨入渗时和地下水疏干时自由面的法向流速v〓。

As a dominant party,CPC government should play a guardian,supervisee and guarantee role to overcome all the difficulties in the development of charitable cause and bring it into full play in the establishment of harmonious society on policies and regulations basis.

在中国共产党的文献中第一次把发展慈善事业提到&最广泛最充分地调动一切积极因素，不断提高构建社会主义和谐社会的能力&的高度来认识。近年来，社会学界对慈善事业的理论专著发表较多，有鉴于此，笔者不揣浅陋，谈谈自己的认识和见解。

Flow through the land, the land of the scale of operation allows the effectiveness of the land may be raised.

通过土地的流转，土地的规模经营可以让土地的效益得到提升。