Lockhart–Martinelli parameter
The Lockhart–Martinelli parameter () is a dimensionless number used in internal two-phase flow calculations.[1] 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.
See also
References
- ↑ Lockhart, R.W., Martinelli, R.C.; Chem. Eng. Prog., Vol. 45. 1949, pp. 39–48
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