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migration(FKaPS)
F-K域偏移法和相移法偏移程序(C语言)(FK domain migration method and the phase- shift method migration program (C language))
- 2021-04-06 20:59:02下载
- 积分:1
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OOPFEM
面向对象的有限元程序设计
——空间8结点等参元的分析计算(Object-oriented finite element program design- space 8 node isoparametric element analysis calculation)
- 2009-03-02 18:47:05下载
- 积分:1
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sanzhuyuan
平面波展开法计算二维三组元周期结构的带隙特性。(Plane wave expansion method for calculation of two dimensional three groups yuan cycle structure of the band gap characteristic)
- 2021-04-17 17:08:52下载
- 积分:1
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polyfit
C语言实现多项式的最小二乘拟合,可用于在区间上对函数进行拟合(C language polynomial least squares fitting, can be used to fit the function on the interval)
- 2021-02-19 12:39:44下载
- 积分:1
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1parallel
用于FLUENT计算结构单自由度涡激振动,采用四阶龙哥库塔法,并设置了并行计算(FLUENT, VIV, Fourth order Runge-Kutta )
- 2016-09-30 18:49:07下载
- 积分:1
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practice6_17
用矩阵法求定积分1/(1+x^2)dx,区间是(-4,4)(Definite Integral Matrix Method)
- 2010-05-17 01:34:47下载
- 积分:1
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UDF-in-fluent
fluent关于蒸发相变的很全的C程序,有详细的注释,对于相关专业的人很重要(fluent the evaporation phase transition is full C program, detailed notes, very important for the people of the relevant professional)
- 2020-11-25 21:19:32下载
- 积分:1
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Biot-Savat
根据物理学的毕奥-萨法尔定理,计算环形线圈周围电磁场的强度。。(According to physics, Biot- Safar theorem, calculate the intensity of electromagnetic field around the circular coil. .)
- 2010-10-01 19:00:18下载
- 积分:1
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supervisedWSD
利用贝叶斯分类原理实现多义词的消歧。首先利用训练语料进行训练,然后基于机器已经获取的知识的基础上对生语料进行词义标注。(Realize the principle of the use of Bayesian classification polysemous word sense disambiguation. First of all, the use of training corpus for training, and then the machine has been based on knowledge gained on the basis of corpus for semantic tagging of Health.)
- 2008-05-15 19:04:24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