PRESSURE PULSE TEST RESULTS AND QUALIFICATION OF THE FLASH-34 FLEXIBLE STRUCTURAL MEMBER MODEL WITH A SURGE TANK ATTACHED TO THE TEST VESSEL (LWBR Development Program)

摘要

FlASH-34 calculations show good agreement with the test data. In particular, FLASH-34 accurately predicts (a) the decrease in peak pressure and the increase in pulse duration due to the presence of a flexible test section, (b) the time delay between the occurrence of the pressure pulse in the test vessel and its arrival in the surge tank and (c) the magnitudes of the transient pressure differences between the test vessel and surge tank caused by the time delay. All of the structural responses were in the elastic range and were approximately quasi-static for the pulses tested.nThe test data versus calculation comparisons presented here provide preliminary qualification for FLASH-34 calculations of transient hydraulic pressures and pressure differentials in the presence of elastically deforming flexible structural members and with the transmission of pressure waves through a contraction and expansion.