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1003
c++算法源代码,主要是POJ上面的算法,根据标号可以找到。(c++ algorithm source code, POJ above algorithm, based on the label can be found.)
- 2012-09-12 22:28:34下载
- 积分:1
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0629
焊接模拟,fluent,电弧udf,钨极氩弧焊,源项(Welding simulation, fluent, arc udf, TIG welding, the source term)
- 2021-03-28 10:29:12下载
- 积分:1
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equal
求解四元三次方程组,通过在VC++的编程环境,实现计算的高速运行(Solving four yuan cubic equations by VC++ programming environment, to achieve high-speed operation calculated)
- 2013-06-19 08:24:46下载
- 积分:1
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generation
遗传算法反演子程序,可用于地球物理非线性反演(The genetic algorithm inversion subroutine, can be used for nonlinear geophysical inversion)
- 2016-03-29 01:20:19下载
- 积分:1
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calculator
用mfc实现计算器的基本操作,支持键盘输入,并保留xp风格,可计算平方,幂,时间显示等操作(With mfc achieve the basic operation of the calculator, support for keyboard input, and retain xp style, calculates the square, power, time display and other operations)
- 2013-10-23 15:22:24下载
- 积分:1
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Seqanaysiswithkalman
基于现代时间序列分析方法的多传感器观测融合Kalman滤波器与Wiener滤波器.NH格式论文。(time seq analysis with kalman and winner filter.)
- 2010-11-28 13:09:31下载
- 积分:1
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db
本程序用在测试采煤机煤矸识别系统中,验证小波算法(Wavelet Algorithm for caving coal)
- 2013-08-10 18:33:01下载
- 积分:1
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QR-decomposition
QR分解法是目前求一般矩阵全部特征值的最有效并广泛应用的方法,一般矩阵先经过正交相似变化成为Hessenberg矩阵,然后再应用QR方法求特征值和特征向量。它是将矩阵分解成一个正规正交矩阵Q与上三角形矩阵R,所以称为QR分解法,(QR decomposition
)
- 2020-08-31 01:08:10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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rtfindgen
多物理场耦合软件采用有限元方法模拟rtfindgen(Coupled multi-physics simulation software using the finite element method rtfindgen)
- 2017-03-10 00:38:29下载
- 积分:1