Single Phase Flow Regime

“Single-phase flow is the flow of a single fluid in a single phase such as water, air, steam, etc.”

Adapted from reference: Massoud Mahmoud, Thermodynamics, Fluid Mechanics, and Heat Transfer, Engineering Thermofluids (2005), pp. 224.

Single phase flow is the flow of one state of matter, regardless of the composition, such as vapor, liquid or gas.