A new hydraulic design method and the numerical method of axial flow pump impeller are introduced. The integral equation for flow calculation of S1 stream surface of impeller is derived.
介绍了一种新的轴流泵叶轮的水力设计方法,推导了求解叶轮s 1流面流动的积分方程。
For potential flows on any stream surface, the equation of the velocity graph is set up by tensor analysis, and thus it provides an analytic method for solving some special flow problems.
本文利用张量分析工具,对任意流面上的位势流,建立速度图方程,为解决一些特殊流动问题,提供一个分析方法。
A new pressure correction algorithm on collocated grids for incompressible flow is proposed. Pressure correction value is obtained from pressure equation.
本文提出了同位网格上的不可压流动压力修正算法,其中压力修正值由压力方程所求得。
The following is the equation for linear flow with skin, at constant rate, in dimensionless form.
这句话的意思是,在稳定流动的前提下,包含表皮因子的线性流方程的无因次形式。
The continuous power flow method can readily overcome the abnormality of the power flow equation in neighborhood of limits and is frequently used for determining the static voltage stability margins.
连续潮流法能较好克服潮流方程在极限点附近的病态,是求取静态电压稳定裕度的常用方法。
Based on the equation of action line for cycloidal pump, a geometrical mathematical model is built to solve instantaneous flow, displacement, average flow and the pulsation of the pump.
根据摆线泵的啮合线方程,建立了用几何法求解摆线泵的瞬时流量、排量、流量脉动率的数学模型。
Dynamic equation for a single spherical bubble collapse in compressible solid-liquid two-phase flow is established.
建立了可压缩固液两相流中单球泡泡壁运动的动力学方程。
For the nonlinear sheared basic flow similar results are derived from the generalized energy equation.
对于基本流场非线性切变情况得到广义能量守恒方程并将前者的讨论结果推广。
Based on a s equation, a new expression was derived for pressure drop in fixed bed with gaseous flow.
本文在a—s方程的基础上推导出气体流经固定床时的压降表达式。
CELS (Coupled Equation line Solver) algorithm, which is based on the simultaneous solution for Pressure and velocity along lines, has successfully solved many flow problems.
求解不可压流体耦合方程的直接解法(CELS算法),在许多计算问题中体现了其优越性。
According to momentum equation and energy equation, the flow phenomena of the internal hydraulic jumps were analysesed for stratified flows in a channel with slop down or slop up.
本文对于正坡和反坡两种情况,根据上、下层的动量方程和能量方程分析了两层液体的内水跃流动现象,研究并得出了不同流动情况下发生内水跃的条件。
The time difference equation derived from unsaturated flow equation can be approximated by Galerkin finite element or finite difference method for space coordinate derivatives.
所得的非饱和土壤水运动方程对时间的差分方程,在空间上不仅可用有限元法而且可用有限差分法处理。
The behavior of uranium metal in rolling mills was considered as a viscous flow. Then the differential equation for rolling pressure was established.
把轧制中的金属运动看作粘性流动,建立了轧制压力微分方程;
We establish a flow equation stress_sensitive to permeability for fractal and deformed double porous media and introduce permeability modulus of double porous media fractal reservoir.
考虑与实际生产相符的介质的双重特性和分形特征,并考虑介质的变形,引入双重分形介质渗透率模数,建立应力敏感地层双重分形介质系统的流动方程。
In this paper, a flow equation describing limited flow is set up for surging protection, it can be used to dynamically adjust the control of surging protection.
提出了描述防喘振极限流量的流量方程,使得防喘振控制质量实现动态调整。
Traditional well-test models for liquid flow are not consistent with material balance equation.
传统的试井模型与物质平衡方程都是不一致的。
The relationship between the pulling coefficient and the width of pull contract for rolled piece was derived by means of establishing flow equation during continuous rod rolling.
通过建立线材连轧流量方程,推导出拉钢系数与轧件拉缩宽度的关系式,并借此分析高速线材头尾超差问题。
Based on the basic critical flow equation, formulae, which used to determine section factor Z and hydraulic exponent M for critical flow in city gate and horseshoe conduits, were derived.
针对水利工程上常用的城门洞形及马蹄形过水隧洞,利用临界流方程,给出了旨在用于临界流分析的断面参数Z和水力指数M 的计算公式和表示水深与Z以及M 之间的关系曲线。
Based on the flow equation concerned on threshold pressure gradient and deforming media, this paper productivity equation and IPR forecasting method for low permeability reservoir.
基于考虑启动压力梯度和介质变形特性的单相流渗流方程,建立了适应于低渗透油藏油井的产能方程,并给出了低渗透油藏单相流ipr预测方法。
Using the improved annealing simulation algorithm, full, scale solution of optimal equation is obtained with flow chart for programming.
引入改进模拟退火算法进行全局最优化求解方程,并给出程序编制流程图。
Based on the theory of two-phase flow, the equation of the pressure gradient is found for the short pipe in cavitation jet cutting set.
基于两相流体动力学的理论,建立空蚀射流切割装置中短管内的压力变化梯度的基本方程式;
The governing equation, its boundary conditions and computing method for the electrical field induced by seawater flow around axis-symmetric body through geomagnetic field have been developed.
给出了描写地磁场中海水绕回转体流动诱导的电场的基本方程、边界条件及其计算方法。
Based on the model to calculate mixture loss, a new calculation model of pressure drop for stratified flow in horizontal wellbore has been developed by applying the momentum conservation equation.
在混合损失计算模型的基础上,应用动量守恒原理推导出了新的水平井筒气液两相分层流型压降计算模型。
An automatic program slicing method is proposed which applies the data flow equation algorithm to the abstract implementation structure diagram for PASCAL.
提出在PASCAL抽象实现结构图上,采用数据流方程算法实现程序切片的自动化。
The equation has preliminarily supplied a theoretical foundation for design, manufacture, experiment and application of miniature flow control valve of the water jetting slit-cut equipment.
利用流体力学有关原理,导出阿基米德螺线槽流量特性方程,为水力喷砂割缝设备微型流量控制阀的设计、制造、实验、应用提供了初步理论依。
The Vortex Dynamics Equation is developed for compressible flow and its characteristics are analyzed.
推导了可压缩流动旋涡动力学基本方程,并分析了其基本性质。
Proceeding from the viewpoint of two-phase flow, the Bernoulli equation for silt-laden water flow is derived, which reflects real mechanic characteristics of silt-laden water flow.
从两相流动观点出发,推导了 含 沙水流时的伯努利方程式,使其更能真实地反映 含 沙水流 的力学特性;
The calculating formula of ventilation flow were derived from the accumulation equation for eliminating radon daughters in the inlet flow with or without contamination.
由此方程导出了入风流未受污染和受污染两种情况下的排氡子体风量计算公式。
An equation for calculating the pressure drop in slug flow was achieved, which is based on the experimental data and the principle of force equilibrium.
利用力平衡原理建立了料栓平衡方程序,并结合试验数据得出了预测栓流运动阻力损失公式。
An equation for calculating the pressure drop in slug flow was achieved, which is based on the experimental data and the principle of force equilibrium.
利用力平衡原理建立了料栓平衡方程序,并结合试验数据得出了预测栓流运动阻力损失公式。
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