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FRFT-suanfa
这是学习分数阶傅里叶变换,必须的算法这是学习分数阶傅里叶变换,必须的算法这是学习分数阶傅里叶变换,必须的算法(the of fragnaii or fft)
- 2021-04-27 22:48:44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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一种基于密度峰值的半监督聚类算法
在第一个图像中的每个描述符,选择它的匹配到第二个图像。(For efficiency in MATLAB, calculating dot multiplication between unit vectors is faster than Euclidean distance. Please note that:
The ratio of attention to angle (the cosine of dot product of unit vector) is the approximate value of the ratio of Euclidean distance of small angle.)
- 2018-07-01 14:11:04下载
- 积分:1
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kemodel
一个对Fluent中k-e湍流模型的修正udf程序,c语言(One pair ke turbulence model in Fluent udf amendment procedures)
- 2021-01-02 15:38:57下载
- 积分:1
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pro2
用遗传算法求解主动悬架系统的例程,里面附有程序求解的数据以及图形!是个很好的例子(A Genetic Algorithm for Active Suspension System routines)
- 2020-09-18 17:17:56下载
- 积分:1
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Mobility_Jena
由美国圣母大学Jena教授及其学生编写的关于计算半导体迁移率的matla脚本文件。(Jena professor from the University of Notre Dame and his students prepare for the calculation of a series of semiconductor mobility matlab script file.)
- 2013-08-25 06:34:29下载
- 积分:1
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juzhen
复数矩阵的运算、包括乘、除、加、减、求逆等(Including all operations of the matrix)
- 2017-07-22 14:21:04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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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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optimal-design
用ANSYS对梁进行优化设计,分为优化分析文件,优化控制文件,求解方法几个方面。(Using ANSYS to optimize the design of the beam, divided into optimization analysis files, optimize the control file, the method for solving aspects.)
- 2020-12-07 19:29:22下载
- 积分:1