Analysis of Unsteady Two-Phase Flow Through Perforated Plates: Experimental Results

摘要

The coolant flow through the perforated dip-plate during a hypothetical core disruptive accident (HCDA) in a liquid metal fast breeder reactor was simulated in a one dimensional model. Several experiments (110) with a water-air mixture as fluid simulating the coolant were run. The pressure drop through the dip-plate, the forces acting on the dip-plate and on the upper plate, acceleration and displacement of the piston, the air volumetric fraction and the size of the air bubbles were measured in a wide range of Strouhal and acceleration numbers. The flow pattern downstream the dip-plate was filmed by using a high speed camera. The present report contains the most significative experimental results. (ERA citation 11:016970)