一种在Fluent UDF中使用IMSL Fortran数值库的方法

摘要

UDF能极大地延伸Fluent的功能,被广泛应用于Fluent的各类计算中.IMSL是一个集合数学与统计函数的程序库,具有高效率、性能强大、应用简单等优点.研究并找到了一种方法,通过将调用IMSL的Fortran程序编译为动态链接库,并在UDF中调用该动态链接库,实现在UDF中使用IMSL数值库;同时给出了一个实例,在数值水槽中生成椭圆余弦波.为结合IMSL的优点,实现更简单、更快速、更自然的UDF程序编写提供了技术支持,极大地提高了复杂UDF的编写能力,增强Fluent的计算能力和应用范围.%UDF can greatly extend the functions of Fluent,is widely used in various types of Fluent calculation.IMSL is a set of mathematical and statistical libraries,with high efficiency,powerful performance,and simple application.A method is proposed to implement IMSL numerical libraries in UDF by compiling the Fortran program that calls IMSL as a dynamic link library and calling the dynamic link library in UDF.At the same time,an example is given to generate cnoidal wave in a numerical flume.It provides technical support for the realization of simpler,faster and more natural UDF programming with the advantages of IMSL,which greatly improves the compiling ability of complex UDF and enhances the computing power and application range of Fluent.