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Aximn
说明: fortran弹塑性分析程序,很有用的啊!(fortran plastic analysis program, very useful)
- 2021-04-15 19:48:54下载
- 积分:1
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vgg_quat_from_rotation_matrix
从旋转矩阵到四元数的转换,matlab代码。(From the rotation matrix to quaternion conversion, matlab code.)
- 2008-12-12 00:33:56下载
- 积分:1
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EEHMT0
根据给定的等距结点上的函数值与一阶导数值, 用埃尔米特等距插值公式计算指定插值点处的函数值。(According to the given equidistant nodes function value with a first derivative values, with equidistant interpolation Hermite interpolation formula specified function value at the point.)
- 2013-08-26 15:12:11下载
- 积分:1
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polynomial_multiplication
实现多项式相乘求模运算,并且模多项式是可以改变的,方便,简单(To achieve polynomial multiplication modulo operation, and polynomial model can be changed, convenient and simple)
- 2010-06-25 21:11:57下载
- 积分:1
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matlab调用ANSYS实现桁架优化
MATLAB调用ANSYS实现桁架优化,是一种创新的算法!(MATLAB calls ANSYS to achieve truss optimization, is an innovative algorithm!)
- 2017-07-10 13:42:22下载
- 积分:1
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线性代数同济第六版
说明: 线性代数同济第六版,最适用的一版,有书签(Linear algebra tongji sixth edition)
- 2021-01-20 09:08:48下载
- 积分:1
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phase-field
说明: 用相场法模拟晶粒的长大的一个程序,用c++编写的,(a program simulation the grain growth by Phase field written using c++)
- 2021-03-02 11:39:34下载
- 积分:1
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R_re_a_esti
基于干扰矩阵的重置和导向矢量估计的数字波束形成,程序经过优化,可运行,里面包含了一个矩阵求积分的子程序,可参考(Reset based on interference matrix and steering vector estimation of digital beamforming, the program has been optimized to run, which contains a matrix integral subroutines, refer to)
- 2013-07-17 21:12:52下载
- 积分:1
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Euler_DG_Quadrilateral_2D
自己写了一个二维Euler方程的间断有限元程序
上次发了一个三角形单元的程序 因为不是曲边单元 所以在圆柱后面容易形成涡
现在把程序改为曲边四边形单元了 没有涡出现
单元是8节点四边形单元 节点编号顺序是 1 5 2 6 3 7 4 8 也就是四个角点依次
是1 2 3 4 然后是边的中点编号 5 6 7 8.
时间推进采用 Runge-Kutta 方法
数值通量采用全局Lax-Friedrichs通量
仍然不能捕捉激波 因为没有做重构或者加人工粘性 等这个做出来了 再发一次。
程序没有进行优化 比如说内存的消耗没有优化 比如直边单元的边界积分仍然采
用了曲边的积分方法 增加了计算量 比如面积分、线积分都是采用的是Gauss-
Legendre-Lobatto积分 积分精度会比一般的Gauss-Legendre积分精度低一阶 等
等问题。 二维的 纯属交流性质 就没有考虑这些问题 ^_^
如果物面全部是直边 那么只要改变一个参数N 就可以获得不同的计算精度 且具
有谱精度 因为单元的节点是Gauss-Legendre-Lobatto积分点。 其实就是谱元法
(物面是曲边的情况我不清楚是不是也可以通过提高基函数的阶数 也就是增加N
来提高计算精度)(Wrote a two-dimensional Euler equations with discontinuous finite element program
Last made a triangular element of the program, not curved edge unit is so easy to form a vortex in the cylinder behind the
Program to curved edge quadrilateral element vortices appear
Unit is the order of 8-node quadrilateral element node number is 15,263,748 which is the four corners of the points in turn
Is 1234 and then the side of the midpoint of the number 5678.
Time promote the use of Runge-Kutta method
Numerical flux of the overall situation of Lax-Friedrichs, flux
Still can not capture the shock wave did not do the reconstruction or artificial viscosity do it Zaifayici.
The program is not optimized for example, memory consumption is not optimized such as straight-edge boundary integral of the unit is still mining
Integral method to increase the amount of computation such as surface integral with a curved edge, the line integral using the Gauss-
The Legendr)
- 2021-01-29 12:58:40下载
- 积分:1
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fdtd2dTM
时域有限差分 2维 完全匹配层
犹他州大学(fdtd method 2D pml perfect mached layed
www.ece.utah.edu)
- 2012-11-20 08:16:20下载
- 积分:1