Two‐phase, steam‐water critical flow

Abstract

Abstract Two‐phase critical flow of steam‐water mixtures has been investigated over a pressure range from 4 to 43 1b./sq.in. abs. and a quality range from saturated vapor to 1% (weight) vapor. Discharges were measured from 1/4‐,1/2‐, 3/4‐, and 1‐in. pipes and from annuli of intermediate cross‐sectional areas. The experimental mass flow rates are always grteater than the values calculated on the basis of a homogeneous flow model. Several empirical methods for correlating the data were determined, and comparisons are presented of the predictions of several analytical flow models.