A Class of Nonlinear Evolution Equations Solvable by Inverse Scattering Method Meticulous Integration of One-Point Subdomain for Solving Three-Dimensional Diffusion Equation 可用逆散射方法求解的一类非线性演化方程三维扩散方程的单点子域精细积分法
Meticulous Integration of One-Point Subdomain for Solving Three-Dimensional Diffusion Equation 三维扩散方程的单点子域精细积分法
The theoretical modeling based on the three-dimensional equation of heat transfer through a fluid element was introduced to predict the viscous heating in the fluid damper under shock conditions. 基于流体单元中热传递的三维能量方程,构建了油液阻尼器内粘性温升的理论模型,对阻尼器在瞬态冲击作用下的油液温升进行了预测。
Four Finite Element Solutions and Comparison of Problem for the Three-dimensional Poisson Equation Eigenvalue 三维Poisson方程特征值的四种有限元解及比较
Spherical Temporal Dissipative-Structures of Tri-Molecular Reaction-Diffusion Equations Meticulous Integration of One-Point Subdomain for Solving Three-Dimensional Diffusion Equation 三分子反应扩散方程的球对称时间耗散结构三维扩散方程的单点子域精细积分法
A three-dimensional Langevin equation with covariant form is applied to describe the asymmetric nuclear fission. 采用一个具有协变形式的朗之万方程组来描述不对称热核裂变。
A three-dimensional potential equation is deduced with the non-orthogonal curvilinear coordinates for the inviscid region. A corresponding general boundary layer differential equation is deduced for viscous region. 推导出了非正交曲线坐标形式的三维势函数方程与相应的两类流面通用的边界层微分方程。
The three-dimensional state equation was derived for a cylindrically orthotropic piezoelectric body with radial polarization. 推导得到轴向极化的圆柱型正交各向异性压电弹性力学的三维状态方程。
By using the five-parameter creep model, the three-dimensional constitutive equation of coal-rocks is discussed, which can reflect the full creep process of coal-rocks. 利用五参量的西原模型,探讨了与时间有关的煤岩三维蠕变本构方程,全面反映了煤岩真实的三阶段蠕变试验规律。
Multigrid solutions based on the implicit schemes of the three-dimensional wave equation 三维波动方程的隐式多重网格方法
A block relaxation method for the three-dimensional Poisson equation 三维Poisson方程的一个块松弛法
Three-Dimensional Divergence Equation and Its Diagnosis Analysis to Storm Rainfall System 三维散度方程及其对暴雨系统的诊断分析
The last part of this paper designed a simple three-dimensional proportion homing rule according to three-dimensional opposite equation of motion of missile-target. And the simulation of the big-loop of terminal guide, control and motion was given. 最后根据导弹&目标的三维相对运动方程设计了一种简单的末端三维比例制导律,并对导弹的末制导、控制以及运动大回路进行了综合仿真。
Pseudospectral-Finite Difference Method for Three-Dimensional Vorticity Equation with Unilaterally Periodic Boundary Condition 三维涡度方程单向周期初边值问题的拟谱&有限差分方法
In this paper, the fully nonlinear water wave problems in open sea and in numerical wave tank are investigated on the basis of three-dimensional Laplace equation by a time-domain method. 本文以三维拉普拉斯方程作为基本控制方程,应用完全非线性时域理论,对开敞水域内结构物强迫运动水波问题和数值波浪水槽问题进行了理论研究和数值模拟。
Periodic Solution Bifurcation of Three-Dimensional Volterra Equation with Periodic Time-Dependence 周期时间制约三维Volterra方程的周期解分枝
The critical parameter and flux of the three-dimensional transport equation 三维迁移方程的临界参数与临界通量
The paper describes a new three-dimensional wave equation P-R splitting migra-tion-three-dimensional P-R splitting migration using directional derivative. 本文提出一种新的三维波动方程P-R分裂偏移方法,即方向导数法三维P-R分裂偏移方法。
Then from the equations of the matrix elements the equation of the usual two composite boson is separated, as it is a three-dimensional equation, the ghost states disappear. 而后由矩阵元方程分离出通常两个复合玻色粒子满足的等时方程,它是一个三维方程,因此无鬼态。
A new boundary integral equation method for solving exterior boundary value problems of three-dimensional Helmholtz equation 求解三维Helmholtz方程外边值问题的一种新的边界积分方程法
The Hybrid Spectral-Difference Schemes for the Three-Dimensional Vorticity Equation with One Periodic Direction in Space and it's Error Estimation 三维涡度方程单向周期问题的谱-差分混合格式及其误差估计
A kind of analytics for solving three-dimensional Poisson equation on the normal boundary condition has been put forward in this paper. 本文提出了在规则边界条件下,求解三维泊松方程的一种解析解法。
From the three-dimensional advection equation, the related expressions for the coordination between horizontal and vertical resolutions of a model are derived. Thereafter, case calculations are performed, obtaining some useful results. 从三维平流方程出发,导出模式的水平与垂直分辨率间的协调关系式,并进行了实例计算,得到一些有益的结果。
An Analytic Solution of the Three-Dimensional Flow Equation for Well-Loss in Double Porous Media 双重多孔介质中考虑井损的三维渗流方程的解析解
The 3D viscous code had been developed to calculate flow field in rotor with tip clearance by solving three-dimensional Navier-Stokes equation with time-marching method. 采用时间推进法求解三维N-S方程,开发了一种用于计算考虑顶部间隙的压气机转子内部流场的三维粘性程序。
The internal flow fields of impeller and wedge diffuser are calculated by solving three-dimensional Navier-Stokes equation method and mixed plane method. 采用混合平面法对设计的跨声速离心压气机叶轮和扩压器内部流场进行了三维粘性计算,给出了叶轮和扩压器内部的计算结果。
At the beginning, the theory of finite element method on temperature field analyses is explained proceeding from the general format of finite element of calculating the temperature field of the transient state, three-dimensional basic equation of the heat-conduction and the hexahedron isoparametric. 首先,从热传导有限元法的基本原理出发,对计算瞬态温度场的有限元一般格式,三维瞬态温度场的有限元方程组的求解以及六面体等参单元的特性进行了介绍。
This paper mostly work over the Du Fort-Frankel difference scheme for the three-dimensional diffusion equation, and construct the difference scheme have high precision and unconditional stabilization, as well as give the relevant numerical example and validate the correctness for the theoretic analysis. 本文主要研究了三维扩散方程的DuFort-Frankel差分格式,构造了高精度、无条件稳定的差分格式,并给出了相应的数值算例,验证了理论分析的正确性。
This paper use for reference the pre-human method, use the finite difference method construct the Du Fort-Frankel difference scheme for the three-dimensional diffusion equation, and use the multidimensional Taylor formula work out the truncation error for the difference scheme. 本文借鉴了前人的思路,用有限差分方法构造了三维扩散方程的DuFort-Frankel差分格式,并用多维Taylor公式的计算方法计算了格式的截断误差。
And I have got the pointwise error estimates. Secondly, I have studied the numerical solution of the three-dimensional Poisson equation at any point of the local convergence and got some super-convergence results on the displacement. 其次,本文研究了数值求解三维泊松方程在任意点的离散格林函数张量积的局部超收敛性,得到一些关于位移的超收敛结果。