In this paper , the finite difference method is used to solve the diffusion equation and the spherical particle is discretized with iso - spacing grids and iso - volumetric grids respectively 采用有限差分法数值求解扩散方程,分别利用等距网格和等体积网格划分计算区域。
Based on the fourth - order difference formula of the second derivative term , a fourth - order finite difference method is developed for solving two - points boundary value problem 摘要从中心差分公式出发,利用二阶微分的四阶差分公式,对两点边值问题得到了一种四阶精度的差分格式。
In this paper , the crank - nicolson type finite difference method is applied to the benjamin - bona - mahony equation . we obtain the existence and uniqueness of the numerical solutions 在这篇文章中,使用crank - nicolson有限差分方法来离散benjamin - bona - mahony方程,得到其数值解的存在性和唯一性。
A finite difference method with accuracies of fourth order in space and second order in time is proposed for time - periodic solutions of a nonlinear parabolic boundary value problem 摘要建立了一个用于求解非线性抛物型方程时间周期解的有限差分方法,在空间和时间方向上该方法分别具有四阶和两阶精度。
Commonly used numerical methods include " spectral transform method " and " finite difference method " . the corresponding models are often referred to as " spectral models " and " finite difference models " respectively 最常用的运算方法有频谱变换法及有限差分法,而有关的模式分别称为谱模式和差分模式。
With panel method and finite difference method , the matching of flow parameters on the boundary between viscous and potential flow can be carried out for the two - phase flow on blade surface 本文以naca4412和naca0012两种翼型为例,通过压力分布计算以及同试验数据的比较分析表明,面元法可以给出更高的精度。
The second part contains chapter 7 , which is contributed to studying other main numerical methods based on probability theory : monte - carlo finite difference method and monte - carlo finite element method 第二部分即第七章,研讨了基于概率理论的其它主要数值方法: monte ( arlo有限差分法和monte ( arlo有限元法。
Commonly used numerical methods include " spectral transform method " and " finite difference method " . the corresponding models are often referred to as " spectral models " and " finite difference models " respectively 最常用的运算方法有频谱变换法及有限差分法,而有关的模式分别称为谱模式和差分模式。
Researchers suggested many numerical methods convenient for the engineering , such as the rayleigh - ritz method , galerkin method , finite difference method , finite integral method , finite element method , etc 研究人员先后提出了便于工程应用的瑞利-里兹法、伽辽金法、有限差分法、有限积分法、有限单元法等数值计算方法。
The numerical analysis modal base has been built , which encapsulates some analysis methods such as the linked - poled method , the finite difference method , the finite element method of different kinds foundations 该库封装了对柱下条形基础分析的链杆法、有限差分法、有限元法,筏板基础分析的有限差分法、有限元法以及桩筏基础非线性有限元分析等类对象。
In mathematics, finite-difference methods are numerical methods for approximating the solutions to differential equations using finite difference equations to approximate derivatives.