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fahanshu
利用c++编写了一个外点惩罚函数,用于对于对目标值的推算与尝试。(Use c++ to write a point outside the penalty function for the target value for the calculation and try.)
- 2016-05-15 21:00:54下载
- 积分:1
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simulationofDFA
source code for simulating a DFA in compilers
- 2009-11-02 13:56:21下载
- 积分:1
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FDTD-WireAtenna3
采用相互垂直的两个振子构成圆极化天线的FDTD程序.可以计算其圆极化波瓣宽度等天线指标
(perpendicular to each other using the two oscillator constitute a circularly polarized antenna FDTD procedures. Can calculate its lobed circular polarization antennas width indicators)
- 2006-10-25 18:44:52下载
- 积分:1
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Algorithm
说明: 算法设计第三版,算法设计第三版,算法设计第三版,算法设计第三版(Algorithm Design Third Edition)
- 2010-04-28 19:44:45下载
- 积分:1
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udf-RPE
fluent 改进的全空化模型,针对可压缩流,内有声速处理(fluent improved full cavitation model for compressible flow, there are the speed of sound processing)
- 2021-03-02 16:59:33下载
- 积分:1
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Rcellsse
读入红细胞图片,通过中值滤波,开运算算,闭运算,和贴标签等方法获得细胞个数
(Read into the red blood cell picture, opening operation count median filtering, and closing operation, and the labeling methods such as cell number)
- 2012-07-28 23:59:33下载
- 积分:1
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C_P
恒温减压沸腾UDF,一个基于压力计算的水蒸发UDF程序,请大家探讨一下(boiling udf of costant T and decreasing P)
- 2011-12-19 11:41:40下载
- 积分:1
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arview
数据挖掘中,关联规则的例子,源码, arview算法的应用实例(data mining, association rules example, the source, the algorithm arview Application)
- 2005-04-06 18:52:04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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juzhenhanshu
传输矩阵法用于计算光纤光栅的有效折射率,是一种经典的数学算法(Matrix function)
- 2013-09-23 13:48:14下载
- 积分:1