▍1. emd
c语言程序编写在经验模态分解,包含三次样条(c language programming in the empirical mode decomposition, contains the cubic spline)
c语言程序编写在经验模态分解,包含三次样条(c language programming in the empirical mode decomposition, contains the cubic spline)
矩量法的fortran程序,忘了那本书的源码了(Method of Moments fortran program, forgot the source of the book)
大规模配电网118节点的潮流计算程序,辐射状网络,含原始数据。(Large-scale distribution network 118 nodes of the power flow calculation procedures, radial network, with the original data.)
电商的数据集,可用于做数据分析 平台搭建(The data set of e-commerce can be used to build data analysis platform.)
电力芯片RN8302计算高次谐波时的FFT变换算法,最高可实现51次谐波计算。(FFT transform algorithm for power chip RN8302 to calculate the high harmonics, the highest can achieve the 51 harmonic calculation.)
稀疏矩阵算法及其程序实现(杨绍祺+谈根林),有解决稀疏矩阵需要的朋友可以好好认真的看一下(Sparse matrix algorithm and program implementation (Yang Shaoqi+ Tan root forest), solve sparse matrix can be a good friend in need a serious look at)
稀疏矩阵算法及其程序实现(杨绍祺+谈根林),有解决稀疏矩阵需要的朋友可以好好认真的看一下(Sparse matrix algorithm and program implementation (Yang Shaoqi+ Tan root forest), solve sparse matrix can be a good friend in need a serious look at)
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)
计算材料学中用相场法模拟合金凝固相变的程序(Computational Materials Science using phase-field simulation of solidification phase change process)
计算材料学中用相场法模拟凝固相变以及晶粒长大的开源性程序(Computational Materials Science solidification using phase-field simulation of grain growth phase transitions and open-source program)
计算材料学中用相场法模拟凝固相变以及晶粒长大的开源性程序(Computational Materials Science solidification using phase-field simulation of grain growth phase transitions and open-source program)
计算材料学中用相场法模拟合金凝固相变的程序(Computational Materials Science using phase-field simulation of solidification phase change process)
利用元胞自动机以及蒙特卡洛法模拟晶粒生长、凝固相变的一些源程序,以及对两种方法的一些简单文字介绍(The use of cellular automata and Monte Carlo simulation of grain growth, solidification phase change some of the source code, as well as two methods some simple text description)
利用元胞自动机以及蒙特卡洛法模拟晶粒生长、凝固相变的一些源程序,以及对两种方法的一些简单文字介绍(The use of cellular automata and Monte Carlo simulation of grain growth, solidification phase change some of the source code, as well as two methods some simple text description)
运用龙格库塔法-ode45求解一个多自由度的振动方程,得到振动的时域响应曲线(Using Runge Kutta method, -ode45 solved a multi degree of freedom vibration equation, and obtained the time domain response curve of vibration.)
对实际采集的舰船辐射噪声进行了demo谱分析,分别采用了窄带解调和宽带解调两种方式,得到了较清晰的轴频和叶频信息。(use narrow-band and broad-band methods to demodulate the ship-radiated noise which is actually colleted, there can see clear axle frequency and blade frequency in the demo spectrum.)
地理数据拟合,用于GNSS高程拟合,内附示例(Geographic data fitting, used in GNSS elevation fitting, enclose the sample )
计算任意两个等维矩阵之间对应坐标点的距离(Calculate the distance between the corresponding coordinate points of any two equal dimensional matrices.)