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lbm2d
基于D2Q9模型的LBM程序,用于计算方腔驱动流,对应何亚玲《格子Boltzmann方法的理论及应用》一书的源码(LBM D2Q9 model-based program used to calculate the square cavity driven flow, which corresponds He Yaling " Lattice Boltzmann Method Theory and Applications," a source book)
- 2021-03-12 21:19:24下载
- 积分:1
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CUDAMatrixMul
说明: cuda矩阵乘法
通过GPU并行运算实现乘法的加速(cuda GPU parallel matrix multiplication operation by the accelerated realization of multiplication)
- 2020-12-13 21:49:14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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SheepWolf
羊与狼的故事...主要实现狼进入若干羊圈后,寻找最后所有羊圈中剩余的狼和眼数目( the wolf and sheep)
- 2012-05-27 10:02:49下载
- 积分:1
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1.21b
分数阶滑模工具箱,可用于解决阶次比较低的时候(fractional order sliding mode )
- 2016-10-10 09:37:28下载
- 积分:1
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shuzhifenxi
分数值分析的一些ppt课件,很有用,在学习C的时候,可以用到这些博大精深的思想(Fractional value analysis ppt courseware, useful when learning C, you can use these profound thought)
- 2013-05-21 16:04:39下载
- 积分:1
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registration
point cloud 点云配准计算,通过选择几组匹配的点云数据对对点云数据进行配准处理(point cloud point cloud registration computing, by selecting a set of match point cloud data point cloud data registration process)
- 2016-01-12 11:03:05下载
- 积分:1
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ykb
实对称矩阵特征值与特征向量的雅克比法,ap为是对称矩阵,vp返回特征向量(Real Symmetric Matrix Eigenvalues and Eigenvectors of the Jacobian method, ap is a symmetric matrix, vp return eigenvector)
- 2020-08-03 17:18:34下载
- 积分:1
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常微分方程数值解法
常微分方程数值解法,又是一个数值分析的常用算法(Numerical Solution of ordinary differential equations, numerical analysis is a common algorithm)
- 2005-01-31 22:13:30下载
- 积分:1
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JFFTfinalA
使用JAVA模拟FFFT算法 快速傅里叶算法
(Use JAVA simulation FFFT algorithm Fast Fourier Transform Algorithm)
- 2012-07-18 19:04:47下载
- 积分:1