Steam--Water Mixing and System Hydrodynamics Program. Quarterly progress report, January 1--March 31, 1979. [PWR; BWR]

During this quarter analysis included detailed analytic development of I* scaling for annular geometries, continued development of the condensation and vaporization model, continued development of the discontinuous delivery model, and completion of a study of results from tests with distorted annulus lengths. Experimental work this quarter included flooding tests in a simple tube model and condensation and vaporization tests in a heated flat plate model. Design and fabrication of two new instrumentation systems continued during the quarter. Data from previous flooding tests at 1/15- and 2/15-scale were reorganized in a consistent format to facilitate access for model development. A new statistical technique for data correlation was developed, and a Status Report on ECC Penetration Scaling Research was issued.