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- Multigrid algorithms based on the finite difference method of three dimensional(3D) convection diffusion equation are studied. 摘要 研究了三维对流扩散方程基于有限差分法的多重网格算法。
- The conclusion is that BSR has contagion and diffusion effect that has self-magnification and can make the banking system lose its basic function in the end. 研究结论显示,银行系统性风险具有传染与扩散效应,这种传染与扩散效应具有自放大性,并最终可能使银行系统失去基本功能。
- Abstract: Neglecting the diffusion effect, the temperature dependence of the low-amplitude spatial soliton in the Centrosymmetric photorefractive crystal was discussed. 摘要: 在忽略扩散效应的条件下,讨论了中心对称光折变材料中低振幅空间孤子的温度特性。
- unsteady convection diffusion equation 非定常对流扩散方程
- convection diffusion reaction equation 对流扩散反应方程
- A vertical two dimensional model for thermo stratified flows is proposed, which solves the velocity and pressure by a fractional step method, and Large Eddy Simulation model is used to calculate the Reynolds stress and turbulent diffusion effect. 摘要建立立面二维水动力学与水温耦合模型,用分步法求解流速和压力,采用大涡模型计算紊动应力和紊动扩散。
- In the alteration process of the surrounding rock hot fluid, the Au, SiO2, K2O, CO2 and H2O are the entered compositions and the Mg, Ti, Na2, Fe2O3 FeO and CaO are the eliminated compositions, while the diffusion effect of the Au is not clear. 在围岩热液蚀变过程中;Au、SiO_2、K_2O、CO_2和H_2O是带入组份;而Mg、Ti、Na_2O、Fe_2O_6、FeO和CaO是带出组份;Au未表现出明显的扩散效应.
- Neglecting the diffusion effect, the temperature dependence of the low-amplitude Screening bright and dark solitions in biased non-photovoltaic photrefractive crystal was discussed. 本文在忽略扩散效应的条件下,理论研究了加偏压非光伏光折变晶体中低振幅屏蔽孤子的温度特性。
- Theory of Convection Diffusion Equations and Its Application 对流扩散方程的理论与应用
- A perturbational finite volume (PFV) method for the convective diffusion equation is presented in this paper. 在有限体积(FV)方法的重构近似中;引入数值摄动处理;即把界面数值通量摄动展开成网格间距的幂级数;并利用积分方程自身的性质求出幂级数的系数;同时获得高精度迎风和中心型摄动有限体积(PFV)格式.
- For low carrier-gas velocities the HETP may become large owing to molecular diffusion effects. 载气线速低时,HETP是靠分子扩展影响而变大。
- The basic characteristics of gas convective diffusion of underground coal gasification (UCG) are studied. 研究了煤炭地下气化气体对流扩散的基本特征。
- quasilinear convection diffusion degenerate parabolic equation 吸收拟线性退化扩散抛物方程
- Hydrocarbon expulsion relies mainly on diffusional effect and its migration distance is very short. 盆地边缘斜坡是两者共同发育的最有利地区。
- convection diffusion equation with constant coefficient 常系数对流扩散方程
- Place the light under, or above, so the light spreads out over it giving a diffused effect illuminating it, a bit like a movie screen. 将灯放置在上方或下方,灯光照在画上,光线四散开来,有一种散光效果,有一点像一幅电影屏幕。
- In convection, hot currents flow upwards. 在对流中热气流向上运动。
- The transport model based on the convective diffusion theory is used to simulate the process of warm water diffussion and given the characteristic value of the temperature field. 运用建立在对流扩散理论基础之上的输运扩散模型模拟了被动扩散过程,给出了三亚电厂温排水各个方案的温升场特征值。
- The self-deflection process of bright photovoltaic spatial solitons in photovoltaic photorefractive media is investigated by taking into account diffusion effects. 利用微扰方法,通过考虑扩散效应的影响,分析了闭路光伏光折变晶体中的光伏明空间光孤子的自偏转特性。
- Based on the theory of convective diffusion,the theoretical equation for interwell tracer production concentration is derived by the stream tube method. 以对流扩散理论为基础,利用流管法导出了井间示踪剂产出浓度的理论公式。