Fluent udf中文教程，共9章，系统介绍了Fluent中各种用户自定义函数的编写方法。-Fluent udf Chinese tutorial, a total of 9, the system introduces Fluent in a variety of user-defined function of the preparation method.

压力随时间变化的UDF，在一个x坐标从0.8到0.9的窄条内加热源，在指定单元坐标加入质量源项(The UDF of pressure changing with time heats the source in a narrow strip with x coordinates from 0.8 to 0.9 and adds the mass source term at the specified cell coordinates)