ANSYS FLUENT 12.0 UDF Manual

1. Overview

This chapter contains an overview of user-defined functions (UDFs) and their usage in ANSYS FLUENT. Details about UDF functionality are described in the following sections:

1.1 What is a User-Defined Function (UDF)?
1.2 Why Use UDFs?
1.3 Limitations
1.4 Defining Your UDF Using DEFINE Macros
1.5 Interpreting and Compiling UDFs
1.6 Hooking UDFs to Your ANSYS FLUENT Model
1.7 Mesh Terminology
1.8 Data Types in ANSYS FLUENT
1.9 UDF Calling Sequence in the Solution Process
1.10 Special Considerations for Multiphase UDFs

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