Experimental data on two-phase pressure drops across area changes during flow transients. Final report. Volume 1

A series of blowdown-type experiments were conducted, using Freon 113 as the test fluid, to obtain data on pressure drop across abrupt area changes during flow transients. Data obtained during the transient included flow rate out of the upstream reservoir, void fraction at the inlet and outlet of the test section, absolute pressure, pressure drops at several locations along the piping and in the vicinity of the area change, and the total quantity of fluid discharged. In some runs, a turbine meter and drag risk were present at the inlet of the test section. These data are presented as a series of curves for each test run