프로펠러에 의한 LNG 운반선 이중모형 선미의 속도변화 계측

Abstract

The experiment was performed at the large wind tunnel of the Chungnam National University to measure the velocity distribution around the stern of a Liquefied Natural Gas Carrier model. The data, mean velocity vectors of turbulent shear flows at the stern and near-wake including the propeller plane, were obtained by a five-hole Pitot tube for the double body model fixed inside the wind tunnel test section. The present result of the double body model shows a close agreement with the result of the towing tank experiment performed by the KRISO for the same ship model. The characteristics of the LNG stern flow are discussed based on the measured velocity distribution. The data can be very useful for the validation of some numerical methods in computational fluid dynamics.