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grid_adaptation_structure
CFD数值计算中关于求解激波问题的基于非结构网格的自适应网格方法相关代码(CFD numerical calculation of the shock problem based on the unstructured grid method of adaptive grid method)
- 2015-09-18 10:27:23下载
- 积分:1
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Cellular_automaton_method
是CA算法的test程序,用于描述微观枝晶长大的代码!(CA algorithm is the test procedure, used to describe the micro-dendrites grew up in the code!)
- 2009-09-21 16:02:32下载
- 积分:1
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db
本程序用在测试采煤机煤矸识别系统中,验证小波算法(Wavelet Algorithm for caving coal)
- 2013-08-10 18:33:01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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udf_dpm_tongji
fluent多相流DPM模型中使用用户自定义函数对颗粒进行统计(DPM fluent multiphase flow model using user-defined functions for particle statistics)
- 2020-12-06 21:09:21下载
- 积分:1
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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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Wdisp
Wdisp,是基于建造结构计算软件pkpm的结果数据提取文件,方便使用,提取数据后,可用于绘制曲线。(Wdisp, is based on The construction structure calculations software pkpm the results of data extraction files, easy to use, extract data, can be used to draw the curve.)
- 2013-04-08 15:34:48下载
- 积分:1
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fft
FFT快速傅里叶变换,用于数字信号处理,大大提高了运行速度,节省内存开销。C语言实现(FFT fast Fourier transform for digital signal processing, greatly improving the speed and save memory overhead. C language)
- 2011-05-30 00:54:58下载
- 积分:1
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CFD-SIMULATION-OF-BOILING-FLOWS
计算机流体理论方面的文献,动网格的划分和计算(Literature, of the theory of computational fluid dynamic division and calculation of the grid)
- 2012-06-06 10:07:31下载
- 积分:1
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高斯
给出了高斯消元的代码,和程序页面,方便快捷(The code and program page of Gauss elimination are given, which is convenient and quick.)
- 2018-11-19 19:25:26下载
- 积分:1