Embedded grids are adopted to weaken the numerical diffusion of the wake and to apply the above boundary conditions.
为减少尾迹数值耗散和便于添加上述边界条件，采用了嵌套网格方法。
Without repeated interpolations such as in ELM, the Particle-tracing Method reduces the numerical diffusion quite a lot.
因为没有像欧拉·拉格朗日方法那样反复插值，所以质点跟踪法极大地降低了数值耗散。
To reduce the influence of the numerical diffusion on the computational results, such as decreasing the grid size has been used.
给出了分离器内速度矢量图，为减小数值伪扩散对强旋流动的影响，采用了减少网络尺寸等措施。
Standard numerical methods solving these equations often produce nonphysical oscillations, and upwind methods usually cause excessive numerical diffusion which smear the sharp fronts.
求解一般抛物方程所采用的标准有限元或有限差分法会产生难以接受的数值震荡和数值弥散；
Then this paper studied the effect of diffusion coefficient on concentration distribution and the conditions of substitution with numerical dispersion for physical diffusion.
通过将该半解析解与忽略扩散的数值解进行对比分析，讨论了数值弥散代替物理扩散的条件。
Numerical resolution of a non-linear diffusion equation was used to fit the experimental data.
浓度剖面的实验数据由非线性扩散方程的数值解进行拟合。
A numerical model was designed to simulate the kinetic process of diffusion and reaction of one reactant with another on the interface of droplets in a gelatin layer.
设计了一个数值模型来模拟一个反应物在明胶层中边扩散边在油珠界面上与另一个反应物反应的动力学过程。
This paper mainly studies the numerical solution of a class of nonlinear diffusion equations using a monotone iteration method with the global convergence.
本文主要运用一种具有全局收敛性的单调迭代法求解了一类非线性扩散方程的数值解。
For the nonlinear convection-dominated diffusion equation, this method can not only stabilize the numerical oscillation but also accelerate the convergence and improve the computational efficiency.
对于非线性对流占优扩散方程，不仅可以消除因对流占优项引起的数值振荡现象，还可以加快收敛速度、提高计算效率。
A numerical model for turbulent fluctuation and diffusion of gas-particle flows is presented.
本文提出了气固两相流动的湍流扩散数学模型。
Finally, under the three-dimensional ECOM model, the Particle-tracing Method is applied to the numerical modeling of the Changjiang Estuary sewage diffusion.
最后，本文在三维ecom模型下把质点跟踪法应用到了对长江口污染物扩散的数值模拟中。
On the basis of the successfully debugged program a numerical simulation of the diffusion combustion process was performed of methane and air in the high acceleration field.
在调试成功的程序上对甲烷和空气在大加速度场中的扩散燃烧过程进行了数值模拟。
Both theory analysis and numerical results show that the new model has better enhancement result than coherence enhancing diffusion and forward and backward diffusion.
理论分析和数值计算表明，该方法具有比相干增强扩散及前向-后向扩散更好的增强效果。
Numerical simulation of pollutants' diffusion in air has been adopted widely, but the false diffusion occurring in simulation is always an important factor affecting the accuracy of the results.
用数值模拟的方法预测污染物在大气中的扩散已经被广泛采用，但数值模拟产生的伪扩散一直是影响模拟结果精度的重要因素。
For the nonlinear convection-dominated diffusion equation, the method can stabilize the numerical oscillation, accelerate the convergence and improve the computational efficiency.
对于非线性对流占优扩散方程，不仅可以消除因对流占优项引起的数值振荡现象，更重要的是可以加快收敛速度、提高计算效率。
Numerical results indicate how the various parameters such as bulk resistivity and carrier diffusion length in the active region affect the profiles.
以数值结果揭示外延层的体电阻率及厚度、活性区载流子的扩散长度、模增益和丝区宽度等参量对上述各种分布的影响。
A numerical method based on the local linear analytical solution is given for the nonlinear advection diffusion equations.
本文提出了数值求解对流扩散方程的局部解析算法。
Methods to determine the diffusion coefficient for different geotechnical materials and their numerical rage are summarized based on the results of previous laboratory and field tests.
根据以往的室内和野外试验结果，总结了各种岩土材料扩散系数的测定方法和具体数量范围。
Moreover, we study numerical methods for two kinds of diffusion equations, and discuss how to deal with numerically different boundary conditions and the nonlinear diffusion.
同时，我们详细研究了两类扩散方程的差分格式，讨论了处理各类边界条件的方法，以及处理非线性扩散的方法。
A two-dimensional numerical method is presented for predicting the chloride diffusion coefficient of cement paste.
提出了水泥石氯离子扩散系数预测的二维数值方法。
The numerical results show that the diffusion constant and entropy obtained by this method are in good agreement with those of direct dynamical computations.
数值结果指出，用这种方法得到的扩散常数和熵与直接动力学计算得到的非常符合。
A technical concept, "reverse source quantity", based on artificial neural network, has been pointed out in order to carry out a numerical dynamic simulation on hydrocarbon diffusion process.
前言：提出实现烃类重气泄散态势的动态过程数值预测新构想———基于人工神经网络的“反求源”技术。
By comparison with the experimental results, a primary numerical calculation was carried out, for which gas diffusion moves around a building when poisonous gas leakage occurred.
在与实验结果对比的基础上，对某建筑小区环境下有害气体连续泄出的扩散迁移过程进行了初步数值计算。
A numerical method for the IBV problems of the nonlinear reaction-diffusion equation was described.
本文讨论了求非线性反应—扩散方程初边值问题数值解的一种方法。
Zn diffusion profiles calculated from this model with numerical method were in good agreement with the results of experiment.
应用数值分析方法对这一模型求解，得到与实验相符的杂质原子扩散分布；
Detailed numerical simulation study is made on the turbulent diffusion flame of a gas burner.
采用数值方法对重整炉瓦斯燃烧器湍流扩散火焰进行了较详细的研究。
It is one of the basic problems to study the heat conduction equation (the diffusion equation) using numerical method on unstructured grids.
在非结构化网格中，数值求解标量扩散方程(导热方程)是当今数值计算的基础问题。
We explain hybrid model from the view of local diffusion and verify its effectivity through numerical experiments.
我们从扩散性的角度分析了混合模型的合理性，并通过数值实验检验其有效性。
To avoid the effect of false diffusion, QUICK format is used in the numerical method.
为了消除计算中伪扩散的影响，选用了QUICK格式。
In this paper, the numerical simulation and dynamic emulation of poison gas leakage and diffusion that possibly occur in the destructive earthquake are studied.
本文在破坏性地震中可能发生的次生毒气泄漏与扩散灾害的数值模拟与动态仿真研究的基础上，分析了影响毒气扩散的主要参数。
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