求解程序采用虚拟压缩方法和双时间步的时间推进方案，对流项的差分采用高阶精度的数值差分格式。
The present solver USES a primitive variable formulation that is based on the artificial compressibility method combined with dual time stepping method.
为在压气机整机进入深度失速前检测到失速起始信号，提出了一种基于平均数值差分的短周期扰动检测方法。
To detect stall inception signal before the whole compressor running into deep rotating stall, a method based on averaged numerical difference is developed to detect short length scale disturbance.
通过对电阻率测深数据作数值差分处理，使区域场受到压制而局部场得到突出，并且多个相互叠加的异常也得到分离，有利于解释推断。
To process data of resistivity sounding by numeric difference method will separate all anomalies and it will be beneficial to interpretation and inference.
对动态数学校型的数值求解，试验了两种颇为有效的方法，并将这两种方法和常用的有限差分方法作了比较。
In solving the mathematical model, two time-saving and effective numerical methods have been tested and compared with the finite difference method commonly used.
数值算例表明，用精细积分法得到的解与精确解十分吻合，比有限差分法具有更高的精度。
The results of the precise integration method agree well with the theoretical solution and have higher precision than those of the finite difference method.
采用有限差分方法，对波动方程求数值解。
We use finite difference method to solve electromagnetic wave equation.
并利用有限差分方法，对温度场数学模型进行数值求解。
Numerical solution is given to mathematical model of formation temperature field by full implicit finite difference method.
根据输送边界条件，给出了动态模型方程的数值计算方法、管道离散格式、参数存储方法和差分方程。
Based on transmission boundary condition, gives calculation method for value of dynamic model equation, pipeline discrete form, memory method for coefficient and difference equation.
并通过有限差分方法，建立了二维两相聚合物驱数值模型。
By limited difference method, two dimensional, two phase polymer flooding numerical model is built.
对有限元和有限差分的数值计算提出了井孔奇点修正和以沟代井列的计算方法，从而提高了离散化网络的计算精度，并可简化取代三维问题为二维。
The method for correction of singular points of wells and the calculation method of well row replaced by a ditch in the numerical FEM and FDM computations were proposed in this paper.
基于声波或弹性波方程的有限差分方法是数值模拟地震波场或合成VSP地震记录的有力工具。
The finite difference methods based on acoustic or elastic wave equation are very useful tools for wave-field numerical modeling or VSP data synthesizing.
对深部矿柱在承受高静载应力时的动力扰动力学模型进行应力波传播力学响应分析，采用FLAC3D有限差分程序对深部开采圆形矿柱进行高应力下动力扰动数值计算。
By using an explicit finite difference program FLAC3D, a model of numerical calculation is established for a deep mining pillar with dynamic disturbance under high stress.
利用FDTD(时域有限差分方法)对多根细线天线的瞬态响应特性进行了数值模拟。
FDTD (Finite Difference Time Domain) method was used to numerically simulate the transient radiating and scattering characteristics of thin wire antennas.
方法以差分盒计算方法计算肝脏CT图像表面灰度的分维数值。
Method The value of fractional dimension for liver CT image is calculated by differential box counting.
时域有限差分(FD - TD)法是麦氏方程的差分形式的数值解法，用于求解任意复杂目标与电磁场的相互作用问题。
FD-TD is a numerical method to seek the solution of-Maxwell equation in time domain, which can be used to analyze the interactions between electromagnetic field and complicated objects.
本文介绍了求解非饱和土壤中热量和水分耦合传输问题的一种数值方法——积分有限差分方法(IFDM)。
In this paper, an integrated finite difference method (IFDM) for numerical analysis of transient coupled heat and moisture flow in unsaturated soils is described.
有限差分方法是凝固过程温度场解析的常用数值计算方法。
Finite Difference Method (FDM) is usually used for calculating the temperature field of casting solidification processes.
应用有限元和有限差分方法对激光热处理过程的温度场、组织场进行了数值模拟计算。
The temperature field and microstructure field during laser heat treatment process were calculated using Finite Element Method or Finite Difference Method.
在声波波动方程有限差分波场数值模拟中，由于计算模型的限制，导致很强的人为边界反射的产生。
In numerical wave simulation of finite difference for acoustic wave equation, due to the limitation of computer model, there inevitably exists strong artificial boundary reflection.
采用全隐式有限差分方法对模型进行了数值计算。
By using a full-hidden finite difference method a numerical calculation was conducted of the above-cited model.
建立了含有微气泡的平板边界层方程，并采用一种简单的混合长度模型和有限差分方法对该方程进行了数值计算。
The equations of the boundary layer containing microbubbles on the plate are established, then calculated employing a simple mixing length model and a finite difference method.
在研究了现有的交通流宏观模型的基础上，采用差分方法对BD型交通流模型进行了数值模拟。
This paper, on the basis of studying the existing macroscopic model of traffic flow, applied difference method to simulating traffic flow model of model BD.
进一步地，我们采用二分法与相平面分析结合的方法计算压差方程的数值解。
Furthermore, we compute the Riemann solution by using a bisection method combined with the phase-plane analysis.
常用的可转换债券定价的数值解法是有限差分方法。
In the pricing of convertible bonds, finite difference method is often used.
根据喉部沉积的传热模型建立了偏微分方程组，采用有限差分完全隐式格式进行数值分析计算。
On this heat transfer model the differential equations were based, and the finite difference complete concealed grids were used in the numerical analysis computation.
其中，差分演化算法在数值函数优化方面的性能要优于其它的优化算法。
The performance of DE algorithm is superior to other algorithm in numerical function optimization.
普通有限元方法和有限差分方法是渗流计算中常用的数值方法，而贮量集中有限元方法则很少被实际应用。
Ordinary finite element and finite difference methods are often used for seepage calculation, while storage centered finite element method is rarely applied to practice.
目前比较成熟的数值方法有：蒙特卡罗方法，二叉树方法，有限元和有限差分方法。
At present, the most commonly used methods include: Monte Carlo methods, binomial tree, finite element and finite difference methods.
数值计算中采用了分解算法及隐式时间差分方案。
Splitting method and implicit time difference scheme are used in the numerical calculation.
应用差分迭代方法进行了数值求解，得到了液晶指向矢随不同的参数变化的曲线。
Finite-difference iterative method is used for numerical solution, and some curvatures varied with different parameters are obtained.
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