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water
汪德灌教授那本 计算水力学书后的 perisiman 隐式差分法源代码的 c++版本,我是在fortran代码中改过来的,书中的fortran代码有错误, 请较高人才得以突破 这个东西应该比较有用的吧, 尤其对刚接触这方面知识的 注释很详细哦 而且有输入文件(Professor Wang Deguan that the calculation of hydraulics perisiman after the implicit difference method source code c++ Version, I was changed from fortran code, and the book fortran code error, please talents to break with this higher things you should be more useful, especially for刚接触this regard very detailed knowledge of the Notes and the input file Oh)
- 2008-01-10 13:29:29下载
- 积分:1
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water-quality-model
水质模型,用于计算河流下游及河口水环境容量(use for water quality)
- 2016-01-22 16:34:35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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raytracer111
电磁场与微波技术下的射线追踪技术。应用c语言编程(Electromagnetic Field and Microwave Technology under the ray tracing technique. Application c programming language)
- 2013-06-02 20:32:24下载
- 积分:1
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cPPpolyfit
多项式拟合,最小二乘法,c++版本实现,运行环境vc6(Polynomial fitting)
- 2013-04-29 10:37:54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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matrixmulti
在visual studio的平台上开发CUDA程序实现并行加速计算矩阵的乘积,同时比较与串行计算的差异(Differences in the development of procedures to achieve parallel CUDA accelerated computing matrices in visual studio platform, but compared with the serial computing)
- 2020-12-11 21:49:17下载
- 积分:1
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Gauss_Seidel
数值分析中的高斯——塞德尔迭代算法的的C语言实现(Numerical Analysis of Gauss- Seidel iterative algorithm of the C language)
- 2009-05-17 12:50:19下载
- 积分:1
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21
说明: 用C语言编写多元线性回归方程,写得不好的地方请指教!(Using C language multiple linear regression equation, where poorly written, please advice!)
- 2010-06-06 17:04:50下载
- 积分:1
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Euler2Quaternion
欧拉角与四元数 欧拉角与四元数 欧拉角与四元数 欧拉角与四元数 欧拉角与四元数(you you you you you you you you you you you you you you you you my )
- 2014-05-08 21:29:38下载
- 积分:1