천수역에서 저속으로 운항하는 선박의 조종성능 추정

Abstract

In this paper, a mathematical model for a ship manoeuvring with low forward speed in shallow water was suggested. Based on the cross flow model at low forward speed in deep sea, hull, propeller and rudder models were modified to consider the shallow water effects. Static drift and planar motion mechanism tests were performed to obtain the cross flow drag coefficients and hydrodynamic coefficients. To validate suggested mathematical model, numerical simulation results were compared with those of sea-trials. Through comparisons, it was concluded that suggested mathematical model could give proper estimation on turning test results.