A.1 Introduction

This chapter contains some basic information about the C programming language that may be helpful when writing UDFs in ANSYS FLUENT. It is not intended to be used as a primer on C and assumes that you are an experienced programmer in C. There are many topics and details that are not covered in this chapter including, for example, while and do-while control statements, unions, recursion, structures, and reading and writing files.

If you are unfamiliar with C, please consult a C language reference guide (e.g., [ 6, 9]) before you begin the process of writing UDFs for your ANSYS FLUENT model.