Ansys Learning Forum Forums Discuss Simulation Fluids How to calculate NO ppm in fluent Reply To: How to calculate NO ppm in fluent

Rob
Forum Moderator

The model should return a volume fraction or the like. You can use Expressions or Custom Field Functions to convert that volume fraction to something else. CFFs are the old way of doing it, and always use SI units as the input & output regardless of what units you're using.Â