通过一个对 水槽的操作界面来说明C语言PID程序，以及采样控制的C语言编写！-flume through one pair of the interface to illustrate the C language PID procedures, as well as control of the sampling C language!

fluent 中在二维数值水槽中进行二维推板造波的udf程序-Fluent in two-dimensional numerical flume for two-dimensional push plate wave of the UDF program