## Chapter 28: Additional Variables

Additional Variables are non-reacting scalar components that can be transported through the flow.

Modeling information for Additional Variables is available:

- Additional Variables in the CFX-Solver Modeling Guide

- Additional Variables in Multiphase Flow in the CFX-Solver Modeling Guide

Implementation information for Additional Variables in multiphase flow is available:

- Additional Variables in the CFX-Solver Theory Guide

- Additional Variables in Multiphase Flow in the CFX-Solver Theory Guide

This chapter describes the procedure for creating an Additional Variable and the user interfaces used to define and apply Additional Variables:

- User Interface
- Creating an Additional Variable

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