This chapter describes the mathematical equations used to model fluid flow, heat, and mass transfer in Ansys CFX for single-phase, single and multi-component flow without combustion or radiation. It is designed to be a reference for those users who desire a more detailed understanding of the mathematics underpinning the CFX-Solver, and is therefore not essential reading. It is not an exhaustive text on CFD mathematics; a reference section is provided should you want to follow up this chapter in more detail.

For information on dealing with multiphase flow:

For information on combustion and radiation theory:

Descriptions of the theory for other physical models are provided in:

Recommended books for further reading on CFD and related subjects: