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shuzhijisuan
数值计算实例,主要有LU分解,龙格库塔法,高斯分解法,欧拉法,曲线拟合,曲线插值(Numerical example)
- 2014-01-03 10:38:53下载
- 积分:1
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Cellular_automaton_method
是CA算法的test程序,用于描述微观枝晶长大的代码!(CA algorithm is the test procedure, used to describe the micro-dendrites grew up in the code!)
- 2009-09-21 16:02:32下载
- 积分:1
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edger12dlocalbasis
通过C++头文件实现的有限元形状函数计算程序(finite element shape function)
- 2012-11-15 15:02:29下载
- 积分:1
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LZYGSXY
数值分析课程必备的算法:列主元高斯消去法算法。有需要的同学下载(Numerical analysis courses required algorithms: PCA out Gaussian elimination algorithm. Those students in need to download)
- 2009-01-05 22:38:00下载
- 积分:1
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Hanio
关于汉诺塔的代码,中间是用迭代的方法实现的(About Hanio Tower)
- 2012-06-28 22:59:26下载
- 积分:1
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3
说明: 用刷选法求出100之内的素数。并输出数有多少个。(100 prime number is calculated by the method of selection. And the output count how many.)
- 2013-09-11 19:40:35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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oofem-2.4
有限元计算开源库,可以用于计算动力、静力、磁场等等方面的计算(Finite element calculation open source library)
- 2017-12-06 12:01:58下载
- 积分:1
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7
说明: 相变UDF,包括质量传递和热量传递,能够进行气液相变的模拟(Phase transition UDF, including mass transfer and heat transfer, gas-liquid phase transition can be simulated)
- 2013-09-23 15:06:01下载
- 积分:1
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Tin_Method
离散数据生成tin的优秀代码,注释多,易于学习和移植(Discrete data generated tin excellent code, comments, easy to learn and transplantation)
- 2012-05-18 13:12:23下载
- 积分:1