numerical diffusion
英 [njuːˈmerɪkl dɪˈfjuːʒən]
美 [nuːˈmerɪkl dɪˈfjuʒən]
网络 数值扩散; 数值的耗散; 数值耗散; 数值弥散
双语例句
- Numerical Simulation of Diffusion Processes Based on Radial Basis Function Method
扩散过程数值仿真的径向基函数方法 - Numerical simulation of concentration diffusion of harmful gas in heading face with forced ventilation
压入式通风掘进面有害气体浓度扩散数值模拟 - Fast Numerical Solutions of Diffusion Equations in Image Processing
图像处理中扩散方程的快速数值解法 - Convergence of Numerical Solution for Diffusion Filtering Model Based on Wavelet Transform
基于小波变换的扩散滤波模型数值解的收敛性 - Numerical Simulation of Chloride Diffusion Process Based on Monte Carlo Method
基于MonteCarlo方法的氯离子扩散过程数值模拟 - The paper does a numerical simulation of atmospheric diffusion about an experiment of one time tracer at Taiyuan.
本文采用数值方法求解平流扩散方程，对太原市的一次示踪物实验进行了大气扩散的数值模拟。 - Numerical Simulation on Diffusion Combustion and NO_X Generation Characteristics of Coal Bed Methane
煤层气扩散燃烧及NOX生成特性数值模拟 - The Numerical Study on Diffusion of Gases in Limited Space
受限空间内气体扩散的数值模拟及分析 - The Lagrangian method, a moving grid, is used to follow the exact tracks of gas particles as they move with the pressure oscillation in the pulse tube to avoid any numerical false diffusion.
采用拉格朗日方法，用移动网格跟踪脉冲管中气体微元随周期性压力波动的具体运行轨迹； - A kind of difference format ( named Z-C) has been set up according to the discussion of the numerical method on diffusion equation for suspended sediment, and an example showing the calculation process is given in this paper.
通过讨论剖面二维非恒定泥沙扩散方程的数值方法，建立了一种用于求解含沙量分布沿程变化的差分格式（Z－C格式）并通过一个具体的数值例子说明了计算的方法步骤。 - The numerical scheme of the advection term should be designed correctly for the fronts of sharp concentration gradients to prevent excessive numerical diffusion or dispersion when calculating mass transport in the areas of estuary and coast.
用数值模式对河口海岸地区的物质输运进行计算时，平流项的数值格式必须要能正确处理物质浓度锋面，以避免产生过多的数值耗散或频散。 - 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。 - 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； - The discrete-parcel method is a free Lagrangian method, which has many advantages over the traditional Eulerian grid-base numerical methods. It has less numerical diffusion and is more flexible in treating complex ice processes.
该离散元方法是一种自由拉格郎日方法，和传统的欧拉网格数值方法相比，它具有较小的数值扩散并且能够更加灵活地处理复杂的冰过程等许多优点。 - To reduce the influence of the numerical diffusion on the computational results, some measures, such as decreasing the grid size and increasing the order of the discretization scheme, have also been used.
为减小数值伪扩散对强旋流动的影响，本文采用了减小网格尺寸和提高差分格式精度等措施。 - It can avoid excessive numerical diffusion and difficulty in capturing moving boundaries in Euler coordinates, it also can avoid severe gird deformation in the Lagrange coordinates, yet it remains sharp resolution of slip lines.
统一坐标既可以避免Euler坐标法的过度数值耗散和动边界捕捉困难，也可以避免Lagrange坐标法的严重网格变形，并且能保证接触间断处较高的分辨率。 - 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。 - The characteristic approximation is used to handle the convection part along the direc-tion of fluid namely characteristic direction to ensure the high stability of the method in approximating the sharp fronts and reduce the numerical diffusion;
该方法对方程的对流部分沿流体流动的方向即特征方向离散以保证格式在流动的锋线前沿逼近的高稳定性，消除数值弥散现象； - Study on numerical model for TSP diffusion and its application in the urban area
城区大气中TSP扩散的数值模型与应用研究 - 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。 - The algorithm used the stable techniques of Discontinuous Galerkin method and upwind method, etc. to solve such problems as the instability of solution and numerical diffusion.
该数值方法通过使用不连续Galerkin法、上风（upwine）法等稳定性技术来解决数值解的不稳定性问题和数值发散问题。 - 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。 - The application of numerical model of diffusion of atmosphere pollution in two dimensional mountain district with the multi level method
多水平方法在二维山丘地形大气污染物扩散的数值模式的应用 - Practical examples demonstrate that the method has advantages in overcoming numerical diffusion and oscillation and ensuring high efficiency of computation.
计算实例结果表明，ADCG集这三种解法之优点，在克服数值弥散和数值波动方面和提高计算速度方面具有显著的优越性。 - The Research of Numerical Method on Diffusion Equation for Suspended Sediment
泥沙扩散问题数值解法的研究 - Therefore the oscillations in the difference solutions with second or third order accuracy could arise from the numerical dispersion and diffusion terms.
因此在求解NS激波方程时，若采用二阶或三阶差分格式，由于格式弥散项和耗散项的存在，将引起解的波动。 - The FCT algorithm includes two phases: one is low-order transport, in which excessive numerical diffusion may be introduced;
FCT算法包括两个阶段，一个是低阶运移阶段，这一阶段的解，可能会引进过量的数值弥散； - Kinetics of diffusion with chemical reactions in gelatin layer(ⅳ) numerical modeling of diffusion with a reaction on the interface of droplets
明胶层中的扩散和反应的动力学研究&（Ⅳ）扩散伴随油珠界面反应的动力学数值模型 - Numerical Solution of Diffusion Equation of Spherical Particle of Absorbent
球形吸附剂颗粒扩散方程的数值求解 - Numerical Simulation of Diffusion Failure During Hard Alloy Cutting Tools Cutting Course
硬质合金刀具切削过程中扩散磨损的数值模拟