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kalmanfileter_c-code
外国人写的卡尔曼滤波器算法的库,可以供大家参考,已经封装好了(kalman library)
- 2012-04-24 10:46:44下载
- 积分:1
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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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p2mesh
划分网格一个开源的库,有限元的算法,很好用(Meshing an open source library = for finite element)
- 2013-07-22 15:34:38下载
- 积分:1
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maze
关于走迷宫算法的实现程序,完全采用C++语言实现,可以运行(Maze algorithm program, fully C++ language, you can run)
- 2012-07-31 22:21:04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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brick
有限元n维实体材料单元,仅供科研用途,拒绝商业使用(N-dimensional finite element solid material element, for scientific purposes, refusing commercial use)
- 2013-10-23 14:32:13下载
- 积分:1
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fortranchap07
Fortran 95程序设计【彭国伦】第7章原代码,非常有学习价值!(Fortran 95 programming [Lun Peng-- Chapter 7 of the original code, the very value of learning!)
- 2006-12-17 19:42:30下载
- 积分:1
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equation
线性方程组的计算,采用的是高斯消元法来实现的。只有主要的算法代码,没有写主函数(Calculation of linear equations using the Gauss elimination method to achieve. Only the main algorithm code, did not write the main function)
- 2010-08-05 19:34:04下载
- 积分:1
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oofem-1.7.tar
c++的有限元源码,带说明书和测试数据,是难得的有限元开发资料.(This is the code of finite element method, with manual document and data samples, it is valusble for FEM development)
- 2009-04-25 13:59:51下载
- 积分:1
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SignalProcess
基于Visual C++的地震信号处理程序源代码,包括常用的FFT和Hilbert变换代码。(Visual C++ based on the seismic signal processing program source code, including the commonly used FFT and Hilbert transform code.)
- 2010-05-09 20:34:45下载
- 积分:1