Experimental investigation on dynamic responses of single point mooring/towing vessels in narrow water area;

The article s goal is to establish the ship maneuvering mathematical model, simulate the ship s movement in restricted water, to research the width and depth of fairway, speed, lateral distance from the central line and other factors on the bank effect of the ship, and discuss the ship s course keeping ability in restricted waters.

In this paper,the restricted water with free surface under the slamming by a big flat-bottom structure freely falling from a certain height is taken as the research object,and the commercial computational fluid dynamics(CFD) software Fluent is used to investigate the 3D hydrodynamic characteristics of the water by solving the Na-vier-Stokes equations.

Especially with the ship size becoming lager, waters such as the water area near bank, the estuary region, the gulf and the inland channel are becoming shallower and narrower relatively, which are the so-called restricted waters.

In order to give a better prediction for the motion of launching ship in restricted water,the effects of dynamic forces such as wave resistance,viscous resistance,chain force,wirerope force,current force,side thrust and unsymmetrical water area on ship launching were considered.

So interaction effect between ships is very important to the ships navigating in the shallow narrow water area.