约束优化问题

二阶微分方程组，采用龙格库塔法求解，将二阶降为一阶之后在求解。(Second-order differential equations, using the Runge-Kutta method to solve the second-order reduced to an order after solving.)

RLS algorithm.design by simulink

相场法模拟晶粒,有关相场的matlab程序，有相场法fortran源代码 (Matlab program on phase field)(grain evalution based on phase field method)

计算fluent相变的udf模型，包括气相到液相，液相到气相的双向传递。(Calculate the udf model of fluent phase transition)

说明：  利用muscl格式求解可压缩多相流，采用minimod,vanabada限制器(Using muscl scheme to solve the compressible multiphase flow, using Minimod, vanabada limiter)

说明：  本实验是利用卡尔曼滤波器实现一维匀加速运动的轨迹跟踪。卡尔曼滤波是一种时域滤波方法，它采用状态空间方法描述系统，算法采用递推机制，数据存储量小，在导航领域有成功的应用。(This experiment is the use of Kalman filter to achieve a one-dimensional constant acceleration of the trajectory tracking. Kalman filter is a time-domain filtering method, which uses state-space description of systems, algorithms using recursive mechanisms, data storage a small amount of success in the navigation area of the application.)

编制了theta映射法的ansys蠕变子程序(a creep subroutine of ansys that considered the theta-projection method)

用于造波 对于从零开始学习UDF，建议还是先看一下UDF中文帮助，我估计大家知道的都是马世虎翻译的那本吧，感觉挺好。(fluent In order to learn UDF from scratch, it is suggested that we first look at UDF Chinese help.)

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.)

三角形网格划分, 自由网格和结构网格划分，包括主要的matlab文件和函数，使用main.m 执行(mesh triangle grid using matlab, free mesh and structured mesh. The file include mfiles and functions. The program could be run through main.m)