numerical equation的例句大全

The author establishes the differential equation of Valve motion on a drilling pump with offset crankshaft, works out the numerical solution of the motion pattern of the valves and presents the CYC conditions for non-impact valve operation on such a pump.

建立了偏置式钻井往复泵泵阀的运动微分方程式，得出了阀的运动规律的数值解，给出了偏置式往复泵泵阀无冲击工作的CYC条件。

by the numerical simulations of the free surface velocity histories and based on the best consistence between the computational results and the experimental ones, the material parameters in the damage evolution equation and the spoliation criterion are obtained.

通过自由面速度历史的数值模拟，并基于计算结果与试验结果间的最佳一致性，得到了损伤演化方程和层裂准则中的材料参数。

Reiterated two-scale probabilistic model and numerical simulation for heat equation in fractal porous media

多孔介质分形结构热方程的多重双尺度概率模型与数值模拟

This paper introduces a simple and direct method for the numerical solution to the characteristic equation in a step Index multi-mode optical fiber. The 281-lime-program takes up internal memory 8716 bytes and it 152 seconds computer execution time. The result is show to be reasonable and accurate.

介绍求阶跃折射率多模光纤特征方程数值解的一种简捷方法.整个计算程序281行，占用内存空间8716字节，运行仅用152s。

Reproducing kernel theory has been widely applied in general metric geometry, numerical analysis, topological group, partial differential equation theory, fluid mechanics, probability mathematical statistics and other fields up to the present.

再生核理论发展至今已被广泛应用于一般度量几何学、数值分析、拓扑群、偏微分方程理论、流体力学、概率数理统计等领域。

MATLAB Numerical Value Solution and Visualization to Equation of Mathematical Physics

数学物理方程的MATLAB数值解法与可视化

Excel numerical solution of the typical mathematical physics equation

典型数学物理方程的Excel数值解法

Numerical methods using the nonlinear approach include the film mode matching method, the multipole method and the boundary integral equation ( BIE) method.

而像这种非线性的方法包括模式匹配方法，多极方法以及边界积分方程（BIE）方法。

A multi-layer fluid sphere is regarded as an elementary particle model, and an interior numerical solution of Einstein's field equation for the fluid sphere is formulated.

本文以多层流体球作为粒子模型，作出丁流体球内部的Einstein引力场方程的数值解。

The numerical scheme is based on high accurate finite compact difference method. A high order accuracy compact difference method is presented for soling unsteady convection equation with source term.

提出了求解含源汇项非定常对流扩散方程的一类高精度格式。

A Boundary Integral Equation and its Numerical Solution of Potential Flow Around Surface-Irregularities

突体绕流的一种边界积分方程及数值解

Study on Numerical Scheme of Mass Transport Equation Based on POM

基于POM的物质输运方程数值格式研究

Finite-difference Time-domain ( FDTD) method is a kind of important method in numerical calculation. It transforms the Maxwell differential equation with time variant to difference equation so as to find the solution of the electromagnetic field problem.

时域有限差分法（Finite-Difference Time-Domain Method）是一种重要的数值方法，它把带时间变量的Maxwell微分方程转化为差分方程，然后求解电磁场各分量。

A 3D numerical temperature model for diversion tunnel is established by combining the k-ε model and the energy transport equation. The model is tested with the prototype observed data.

采用kε模型，结合能量传输方程建立了引水隧洞三维水温预测模型，并在利用原型观测资料验证模型的基础上，对拟建的锦屏二级引水隧洞的水温进行了预测。

Numerical experiments of large-scale precipitation in 11-layer, primitive equation model

十一层原始方程模式中大尺度降水的数值试验

In this paper, the two dimensional Fokker-Planck Equation is exactly solved by means of the numerical method. The velocity distribution at the saddle point, the second moments of the coordinate and velocity, the time development of the nuclear fission rate are studied.

本文应用数值方法严格求解二维福克-普朗克（Fokker-Planck）方程，研究在鞍点上的速度分布、坐标和速度的二次矩以及核裂变速率随时间的演变。

Moreover, sometimes the time-dependent potential in the NLS equation cannot be integrated exactly which weakens the advantage of the split step method, so numerical integration is utilized by the author.

另外，考虑到NLS方程中依赖于时间的势函数有时候是不能关于时间变量精确积分的，这样就减弱了分裂步方法的优势。

It carried on numerical simulation to the flow field, which applied continuity equation, Navier-Stokes equation and turbulence models.

课题以水模型和数学模型为研究方法，应用连续性方程、Navier-Stokes方程和湍流模型，对钢包流场进行了数值模拟计算。

Control equations of numerical simulation include continuity equation and Reynolds Navier-Stokes equation with standard k? ε turbulent model. The Finite-Volume-Method is utilized for discretization of the control equations.

应用了由连续性方程、雷诺应力平均Navier-Stokes方程、紊动能k方程和紊动能耗散ε方程组成的封闭方程组作为泵段及泵装置内部三维湍流流动的控制方程。

The one dimensional numerical model for analyzing the color AC PDP cell is established based on fluid equations and Poisson equation from its physical model.

根据彩色AC-PDP放电机理的物理模型，提出了基于粒子流连续性方程和泊松方程的一维彩色AC-PDP放电单元的数值计算模型。