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BZreaction_diffusion
模拟二维BZ反应扩散模型，方法是用显式EULER法求解模型的偏微分方程组(Simulated two-dimensional BZ reaction-diffusion model, the method is to use explicit EULER method for solving partial differential equations model)
- 2011-09-21 12:00:27下载
- 积分：1
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需求响应程序
万有引力单目标优化算法，用于单目标线性规划问题(Universal gravitation single objective optimization algorithm is used for single target linear programming problem.)
- 2020-12-13 16:39:14下载
- 积分：1
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GAtools
是用MATLABA编写的遗传运算发的一个小程序 挺好用的 大家(MATLABA is prepared by the genetic operator issued a small procedure very well, we try to use)
- 2006-05-30 09:25:04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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UMAT_Damage
对于abaqus子程序学习的初学者，这是一个学习umat的很好算例,(Abaqus subroutine for beginners to learn, this is a good example to learn umat,)
- 2013-05-24 15:01:35下载
- 积分：1
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stak
一个可以计算二维散射问题的矩量法程序(a calculation of the two-dimensional scattering Moment Method procedures!)
- 2007-04-20 21:09:36下载
- 积分：1
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POLY2
一元稀疏多项式编程，希望对大家的编程有点用，欢迎下载(hope it useful to you)
- 2010-05-19 13:28:14下载
- 积分：1
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Fortran_3D_FDTD
说明： 三维FDTD程序,一个Fortran写的三维FDTD程序(Three-dimensional FDTD procedure, a Fortran program written by three-dimensional FDTD)
- 2021-04-09 11:19:00下载
- 积分：1
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A-Recursive-Dynamic-CGE
动态CGE模型代码，可以直接粘贴至GAMS软件运行，代码清晰，易于修改。(Dynamic CGE model code, can be directly pasted to the GAMS software operation, the code clear, easy to modify.)
- 2021-04-23 08:28:48下载
- 积分：1
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4block
2D single bin packing 问题的4Block算法(4-Block Algorithm for 2D single bin packing Problem)
- 2009-04-07 14:26:16下载
- 积分：1
