This example demonstrates the use of lsode, an ordinary differential equation solver. 这个例子展示了lsode的用法,这是一个常见的微分方程解算器。
The simulation result show that fast response times and low overhead in a system with hundreds of nodes are also obtained in the fork-join model and equation solver like applications. 仿真结果表明,分治模式和解方程类的迭代模式的工作流任务能够在平台上成功调度运行,具有比较快的响应时间和低的通信负载。
The solutions to free vibration problem of beams with functionally graded materials based on ordinary differential equation solver 功能梯度材料梁自由振动问题的常微分方程求解器解
This paper applies an ordinary differential equation ( ODE) solver of interpolating matrix method to calculate large deflection of thin circular plate with varible thickness. 文章用插值矩阵法的常微分方程求解器求解变厚度圆薄板大挠度弯曲问题,提出了对一般方程正则奇点的处理途径。
Inhomogeneous linear ordinary differential equation higher-order algebraic equation solver 非齐次线性常微分方程高次代数方程式解算器
Higher-order algebraic equation solver Second is the ability to run Java code in the database server, not just at the desktop. 高次代数方程式解算器其次是在数据库服务器中、不只是在台式机上运行Java程序的能力。
A transcendental equation is solved by applying multi functional solver; and a series of Q f ξ λ relation curves and λ ξ max relation diagram are given, where Q f denotes horizontal shear of general frame. 用多功能求解器求解超越方程,并给出总框架的一系列Qf-ξ-λ关系曲线和λ-ξmax关系图。
Numerical experiments performed with the stress analysis of underground cavern excavation problems have shown that the multigrid method is an effective matrix equation solver for rock mechanics and engineering problems. 地下洞室开挖应力分析的数值试验表明,多重网格法是求解岩石力学与工程问题的一种有效的方程求解器。
Genetic Algorithms for Airfoil Optimization Using Euler Equation Solver 基于Euler方程的翼型优化设计高效基因算法研究
CELS ( Coupled Equation Line Solver) algorithm, which is based on the simultaneous solution for Pressure and velocity along lines, has successfully solved many flow problems. 求解不可压流体耦合方程的直接解法(CELS算法),在许多计算问题中体现了其优越性。
We have discussed the least 2-norm solution of the parameterless linear programming problem and then presented a fast Newton method. The algorithm requires only a linear equation solver. 本文给出了这种线性规划的精确的最小2-范数解,在此基础上提出了快速的牛顿算法,此算法只需要一个线性方程组解算器。
Basic Study of Electromagnetic Scattering from Dielectric and Coated Structures& Integral Equation Method and Its Fast Solver 介质以及涂敷介质结构电磁散射特性的基础研究&积分方程法及其快速求解
The algorithm is implemented in a viscous calculation based on a Reynolds-Averaged Navier-Stokes ( RANS) equation solver considering the effect of turbulence. A prior solution of wall detachment point and bubble length is not required. They are simulated by a cavitation model. 提出的汽蚀模型和算法耦合了考虑紊流粘性效应的Reynolds-averagedNavier-Stokes方程求解方法,可以自动模拟空泡起始点、空泡长度和汽蚀空泡形状。
The numerical examples indicate that the present method of lines recurring to ordinary differential equation solver is validated, accurate and terse for analyzing the time-dependent mechanical problems. 算例表明,采用拉普拉斯积分变换于线法分析结构粘弹性力学等含时间变量的力学问题是十分有效的。
Based on the result of quasi-3D design, applying multi-objective aerodynamic optimization design method, an aerodynamic optimization design process of multistage axial turbine is presented. Genetic algorithm and artificial neural network are jointly adopted during optimization. Three-dimensional viscosity Navier-Stokes equation solver was applied. 在准三维设计基础上,采用多目标优化设计方法,给出一个多级涡轮气动优化设计流程,优化联合采用人工神经网络和遗传算法,流场计算采用全三维粘性流N-S方程求解。
The algorithm includes several parts: Syndrome Calculator, Key Equation Solver, Chien Search and Error Value Evaluator. 译码算法主要包括求伴随式、关键方程求解、钱搜索以及求错误值等几部分。
In a compressible fluid-mixture model based on volume fraction, a high-order piecewise parabolic method ( PPM) is employed to solve multi-fluid flows characterized by the van der Waals equation of state. A double shock approximation is used in the Riemann solver. 基于流体体积分数的混合型多流体数值模型,将piecewiseparabolicmethod(PPM)方法应用于可压缩多流体流动的数值模拟,采用双波近似求解多流体vanderwaals状态方程的Riemann问题。
The combination of a N-S equation flow solver with a nonlinear optimization method is used to design a new airfoil with high ratio of lift over drag. 使用解析形状函数法和参数化翼型表示方法,将求解绕翼型流场的NS方程解与优化方法相结合,可设计出新的高升阻比翼型。
An efficient Euler equation solver for three streams in an axisymmetrical eject nozzle 高效欧拉方程解法求解轴对称引射喷管三股流问题
The results show that the complexity of key equation solver block has been reduced by 30% and that of syndrome computation unit been reduced by more than 20%. 结果表明,与直接实现方法相比,关键方程模块的面积节省了约30%,用于伴随式计算的各单元电路面积也普遍减少20%以上。
The methods of analytic and semi-analytic Ordinary Differential Equation solver; 以解析、半解析方法为基础的常微分方程求解器方法;
With the help of the secondary development function of ANSYS, a famous finite element program, the spline element is established in ANSYS as a user element, and the structure calculation is made using the pre and pro process function and equation solver. 借助大型有限元分析程序ANSYS的二次开发功能,在ANSYS中构造用户单元&样条单元,然后运用ANSYS的前后处理功能和计算功能进行结构计算。
Free vibration of space-mega-frame, frame-shear wall and bundled-tube structures was analyzed and researched by semi-analytical method of ODE ( Ordinary Differential Equation) Solver in this paper. 本论文采用半解析常微分方程求解器方法分别对高层建筑空间巨型框架、框架&剪力墙和束筒结构的自由振动问题进行了分析和研究。
Differential equation solver should be able to reflect the physical nature of the circuit analysis methods, but the initial value which difficult to determine become obstacles when it applications in power electronics. 而微分方程求解本应是最能体现物理本质的电路分析方法,但难以确定的初值成为其在电力电子分析应用中的阻碍。
Experiments in the case of suspension and collision analysis of the particles are connected by a spring force, speed and position of the particle for each frame and through the differential equation solver. 实验在悬挂和碰撞情况下分析由弹簧连接的粒子受到的合力,并通过微分方程求解粒子每一帧的速度和位置。
In order to describe the mass transfer and the energy transfer when the leaves moisture transpired, a phase transition model needs to be found, to compile the UFD source program of this processing and let its data communicate with that of equation solver. 为了描述烟叶水分蒸发时产生的质量传递和能量传递过程,则还需要建立相变模型,通过编写该过程的UDF源程序与求解器实现数据交流。