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7
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)
- 2021-03-02 15:09:34下载
- 积分:1
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mabExpress_src
任意数学表达式计算的源码及测试软件
(Calculation of arbitrary mathematical expression of the source code and test software)
- 2009-04-12 22:26:39下载
- 积分:1
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jacobi
雅可比迭代(过关法)计算实对称矩阵的特征值和特征向量(Jacobi iteration (immigration law) the calculation of Real Symmetric Matrix Eigenvalues and eigenvectors)
- 2020-08-03 17:08:34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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sor超松弛迭代法
一个实现sor超松弛迭代法的c语言算法,可以帮助新手完成矩阵计算(A C language algorithm for realizing over relaxation iterative method)
- 2017-06-30 09:34:56下载
- 积分:1
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Ansys-bridge
ANSYS 分析一座预应力连续刚构桥的命令流,很实用哦(ANSYS analysis of a prestressed continuous rigid frame bridge command stream, and very practical!)
- 2012-05-30 12:01:35下载
- 积分:1
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wogefasuanli
涡格法计算机翼的涡强,对不同剖面形状,拱度等进行了比较分析。并且与书籍上对比(Vortex lattice method the computer wing of the vortex is strong, the shape of different profiles, such as camber, a comparative analysis.)
- 2011-07-10 20:40:16下载
- 积分:1
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FractalDim
盒维数计算和豪斯多夫维数的计算与应用研究程序(box counting)
- 2013-07-27 17:50:31下载
- 积分:1
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jisuanfangfa
合工大大二计算方法实验的源代码,里面有实验指导书.有牛顿下山,迭代啊什么的(Sophomore calculation experiment source code, which has experimental guide books)
- 2010-06-19 14:42:44下载
- 积分:1
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longgekuta
系统仿真导论第一个实验程序,龙格库塔实验程序(Introduction The first experimental system simulation program, Runge-Kutta experimental procedures)
- 2013-06-28 19:12:31下载
- 积分:1