مهندسی دریا
Mohammad Ahmadnejad; Abbas Fazelinia
Abstract
The ship behavior should be studied with respect to channel width and depth, because of the existence of hydraulic and hydrodynamic effects in navigable channels and waterway. The most important parameters that designer should consider are Squat, resistance, slamming, bow body force and suction. Accurate ...
Read More
The ship behavior should be studied with respect to channel width and depth, because of the existence of hydraulic and hydrodynamic effects in navigable channels and waterway. The most important parameters that designer should consider are Squat, resistance, slamming, bow body force and suction. Accurate prediction of hydrodynamic parameters for operational ships in shallow water are essential to avoid grounding. Hydrodynamic parameters for Series 60 hull Vessel's in shallow waters are experimentally investigated in this thesis using models with coefficient, CB=0.8 and The Experiments were carried out in towing tank in different condition Critical speeds for vessel's can be obtained based on experimental results. This leads to an increase in ship efficiency and reaching the optimal speed and dratht in channels. The results have been compared with those obtained from analytic, numerical and empirical methods. It should be noted that fake walls were designed to carry out this study after designing the floating model. The unique characteristics of the fake walls was adjusting the channel width. It was possible to receive and register the sensors using PLS program. Throughout the experiment all the mechanisms were monitored automatically by the examiner.