Lockhart-Martinelli parameter
- Lockhart-Martinelli parameter
The Lockhart-Martinelli parameter is a dimensionless number used in internal two-phase flow calculations. It expresses the liquid fraction of a flowing fluid. Its main application is in two-phase pressure drop and boiling/condensing heat transfer calculations.
It is defined as:
:
where
* is the liquid phase mass flowrate;
* is the gas phase mass flowrate;
* is the gas density;
* is the liquid density.
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