Study On Hydrodynamic Performance Of Fishing Boat Based On Fuel And Fresh Water Consumption Methods

Seiner boat is one of the main types of Deep-sea fishing vessels.Due to the harsh environment of wave motion in the open sea,the stability,seakeeping resistance and crew's comfort are easily affected.Therefore,it is imperative to study the wave motion response of Seiner boat.This paper takes a Seiner boat in the open sea as the research object,by constructing a 3d model,based on the three dimensional potential flow theory to study the hydrodynamic characteristics of Seiner boat,fresh water and fuel out of the influence of ship motion,at the same time the fuel and fresh water loading arrangement for the influence of ship motion response,finally chose in consumption in the process of three kinds of loading conditions to determine the appropriate mode of fuel and fresh water consumption.First,by analyzing the six-dof motion responses of Seiner boat under different filling rates and wave angles when ignoring liquid sloshing and considering liquid sloshing,then the variation law of the motion response of Seiner boat in waves was obtained.Second,due to the fuel tanks and fresh water tanks in seiner boat position are different,and there is a big gap between fuel tank number and fresh water tank number,the response of the Seine boat to the wave motion under different arrangements of fuel and fresh water was compared and analyzed,then got the motion responses of heave and roll and sway when only change fuel stowage arrangement and only change fresh water stowage arrangement.Finally,analyzes the motion of the hull in waves when the oil and fresh water of the Seine boat are arranged in different ways under three loading conditions,and got the roll motion response characteristics when changing the fuel oil and fresh water arrangement,at the same time,through comparative analysis,obtained the minimal impact on seiner motion response of fuel and fresh water arrangement and the sequence of consumption,so as to improve seiner boat wave resistance,and provide more powerful guarantee for the safety of Seiner boat.