An Experimental Investigation of Hydrodynamic Impact On 2-D LNGC Models

This paper presents an experimental investigation of hydrodynamic impact on two dimensional models. The models tested are 1/25 scale longitudinal and transverse models 138K LNGC tank. Only longitudinal mode of excitation was tested. The filling ratios tested was 20% and 70% of the tank height. The amplitudes of the excitation were 10% and 20% of the tank length. The measured data were analyzed. The time histories were of the pressure data were presented. The statistics of three maximum peaks were presented. They are maximum pressure, the average of one third highest pressures, and the average of one tenth highest pressures. The flow pattern was captured by high speed camera. The flow patterns at every quarter of the exciting period were presented.