拉丁超立方抽样，调用方式如下：S=lhs(m,dist,mu,sigma,lowb,upb) m: a scalar,the number of sample points dist: A row with distribution type flags of basic random variables the value of the flag can be 1 (for uniform distribution, 2(for normal distribution), 3

网格信息处理，控制体积、界面法向向量、中心节点坐标-Grid information processing, control volume, the interface normal vector, the central node coordinates