RK_4

ANSYS二次开发自定义破坏准则子程序(ANSYS subroutine)

FLUENT udf 更改S-A 湍流模型源项的程序(modify turbulence model S-A)

the structure of the DG-FEM is very similar to that of the finite element method (FEM), there are several fundamental differences. In particular, the mass matrix is local rather than global and thus can be inverted at very little cost, yielding a semidiscrete scheme that is explicit. Furthermore, by carefully designing the numerical flux to reflect the underlying dynamics, one has more flexibility than in the classic FEM to ensure stability for wavedominated problems. Compared with the FVM, the DG-FEM overcomes the key limitation on achieving high-order accuracy on general grids by enabling this through the local element-based basis

说明：  常用算法包括第一类整数阶贝塞耳函数，积分刚性方程组的吉尔方法，计算多重积分的高斯方法，快速傅利叶变换，离散随机线性系统的卡尔曼滤波，切比雪夫曲线拟合的c语言算法(failed to translate)

多目标遗传算法求解多目标优化问题的实际例子，运用matlab编写(Multi-objective Genetic Algorithm for multi-objective optimization problem actual examples, the use of Matlab prepared)

FLUENT里面改进的SA湍流模型，为UDF文件，可以进行链接编译计算(FLUENT which improved SA turbulence model for the UDF file can be compiled to calculate the link)

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)

此程序碼為計算inverse-preisach之解析法計算(This program code for calculating inverse-preisach of analytical method)

该程序是正定矩阵的Cholesky分解实例，Cholesky是矩阵分解常用的方法(The procedure is the Cholesky decomposition of positive definite matrix example, Cholesky matrix decomposition is a commonly used method)

说明：  fluent的udf程序，可以计算pmv(Fluent's udf program can calculate pmv)