1)numerical dissipation数值耗散
1.Aim To reduce the numerical dissipation, increase accuracy of numerical solution of hyperbolic equations, and keep numerical stability, solving the flow problem with contact discontinuity.目的 为进一步提高双曲型方程数值解的精度,减少数值耗散,同时保证稳定性,处理有强间断的流动问题; 方法 从总变差减小(TVD)定义出发,分析保证数值解TVD的条件,找出满足研究目的的可能性和途径; 结果 首次提出和证明双曲型方程数值解TVD的充分必要条件,并据此简化导出适用于时间显示格式的TVD充分条件,并据此构造了一种低耗散TVD 格式; 结论 进行的数值实验证明,高分辨格式可以进一步减小数值耗散,提高数值解精度
2.For hyperbolic conservation laws,a third-order semi-discrete central-upwind scheme with less numerical dissipation is presented.对一维双曲型守恒律,给出了一种具有较小数值耗散的三阶半离散中心迎风格式。
3.For different limiters, the different strength of numerical dissipation and dispersion of schemes is the reason why the schemes show obvious different characteristics.本文利用差分方法余项效应理论,分析比较了一些典型的限制因子·对不同的限制因子,格式的表现明显差异主要是由其数值耗散性、色散性强弱不同所致·在分析比较格式的数值耗散性、色散性之后,本文提出了一种新的限制因子,得到的格式在解的剧烈变化区具有更高的分辨率,在光滑区避免了由于数值色散性较强导致的失真·数值试验表明该格式具有较好的性质
英文短句/例句
1.Research on Numerical Dissipation of Integration Methods for Motion Equations in Constrained Mechanical Systems约束力学系统运动方程积分的数值耗散研究
2.The Study of the Tidal Numerical Simulation with Assimilation and the Tidal Dissipation in the Bohai Sea, Yellow Sea and East China Sea渤黄东海潮波同化数值模拟和潮能耗散的研究
3.Numerical simulation of the energy dissipation characteristics of an excavated circular tunnel under high stress conditions深部圆巷开挖围岩能量耗散特征数值模拟分析
4.A Numerical Method for Imposing Slip Boundary Conditions in Dissipative Particle Dynamics耗散粒子动力学中实现滑移边界条件的数值方法
5.Riccati function solutions of nonlinear dispersive-dissipative mKdv equation非线性色散耗散mKdv方程的Riccati函数解
6.On Application and Scientific Value of Dissipative Structure Theory;浅谈耗散结构理论的应用和科学价值
7.Applying Robinson's New Two-Equation Turbulence k-(?) Model to Numerically Simulating Turbulent Flow基于新的描述湍流耗散方程的k-ζ两方程湍流模型的数值算法研究
8.The frictional dissipation will introduce an exponential decay.摩擦耗散可导致指数式的衰减。
9.Under these circumstances, F is called a dissipation function for the set C.这时,称F为系统c的耗散函数。
10.Robustness of Exponential for Dissipativity Nonautonomous Dynamical Systems;非自治系统指数耗散性的鲁棒稳定性
11.Exponential attractors for derivative Schr odinger - Boussinesq equations;耗散Schrdinger-Boussinesq耦合组的指数吸引子
12.Dissipation Factors Represented by Piezoelectric Equivalent Circuit Parameters耗散因子的压电等效电路参数确定法
13.Extremum Problem in the Wheatstone Bridge Circuit惠斯通电桥电路中耗散功率的极值问题
14.Exploration to the Value of Theory of Discipative Structure and Its Methodology;耗散结构论的理论价值及方法论意义探析
15.Numerical Simulation and Experiment Research on Low-Energy Consumption Blank Holding System;微能耗压边系统数值模拟及实验研究
16.Numeric Calculation of the Eddy Current Loss in Magnetic Isolated Segment of Submersible Motor;潜油电机隔磁段涡流损耗的数值计算
17.Dissipative Structures Solntion of Logarithmic Nonlinear Nelson-de La Pena Equation;对数非线性Nelson-de La Pena方程的耗散结构解
18.Dimension estimating of global attractors of the General Camassa-Holm equations with dissipation带耗散的广义Camassa-Holm方程吸引子的维数估计
相关短句/例句
numerical dissipation and numerical damping数值耗散与数值衰减
3)rent dissipation租值耗散
1.A New Framework to Explain the SMEs Credit Accessibility Puzzle:Perspective of Rent Dissipation and Transaction Cost;解读中小企业贷款难理论谜团的新框架——租值耗散与交易费用视角
2.The rent dissipation rate will be lower than 1 if there is not the reserve score.只有在不设置及格分的情况下,考试过程的租值耗散率才不会超过1。
4)dissipation coefficient耗散系数
1.The results reveal that the power spectrum curve in the inertial subrange for the forest CL can be expressed by a power law, but the power exponential is less than -2/3; turbulent scale in the forest CL tends to decrease; the dissipation coefficient in the upper forest CL is greater than that in the lower forest CL; momentum and momentum flux decrease with the in.使用湍流梯度测试资料,对植物冠层动量交换特征进行了详细研究,结果表明;森林冠层内惯性副区能谱曲线仍可用幂指数描述,但斜率比-2/3更负;森林冠层内湍流尺度有变小的趋势;森林上层的耗散系数比下层大;由植被吸收引起动量及动量通量随冠层深度增加而明显减小;冠层下层的动量通量和耗散系数分别与上层的量有好的正相关;森林冠层内耗散系数和动量通量随大气稳定度有明显变化。
5)dissipation function耗散函数
1.Expressing Method of Labyrinth Cavity Characteristic by Dissipation Function;迷宫空腔特性的耗散函数表示法
2.The Lagrange s equation containing dissipation function and the physical meaning of such functions;含耗散函数的拉格朗日方程及耗散函数的物理意义
3.The main objective of this paper is to introduce direct implementation of dissipation function for viscous loss assessment i.本文引入耗散函数对间隙泄漏流动的粘性耗散进行评估 ,这种方法是对粘性影响带来的粘性耗散的最简单也是最直接模拟和计算方法。
6)dissipative exponent耗散指数
延伸阅读
010耗散分子式:分子量:CAS号:性质:见
