In this study, the flow around a forced rolling two dimensional hull section with bilge keel at free surface is simulated by using RANS solver. Roll damping coefficients are calculated numerically for different bilge keel width and validated with experiments to show if RANS code can correctly predict the damping coefficients. The generated vortices around the hull and bilge keel are observed by using RANS solver to show the effect on roll damping.

Ships around the world are operated at all weather conditions. Therefore HVAC (Heating Ventilating and Air Conditioning) systems for ships are very significant and these systems have to work in limit conditions of outer climate temperature and moisture. To this end, ship heat load should be known. Therefore necessary heat load is calculated for various air conditions and ship speeds. In this paper, the ship’s characteristics having the HVAC system are studied. Moisture, velocity and energy equations are derived. Firstly Simulink model is created for one location by Matlab Simulink. For the entire ship’s HVAC system simulation, heat transfer of the locations with each other and outer climate are also considered. Desirable temperature and moisture conditions for locations are derived by adding a PID controller to the model.

A ship between waves is exposed to the effects of waves, currents, winds, etc., and dynamic forces resulting from the motions of the ship. For this reason, it is necessary to establish motion equations to examine the motion of vessels under environmental influences and to make dynamic analyzes. The purpose of this paper is to compile the equations used in the mathematical modeling of the ship motion with reference to work on nonlinear ship motions with six degrees of freedom and ship-acting forces. The components of the equations consist of inertial forces and moments, restoring forces and moments, and damping forces and moments. The equations compiled in this study can be used to obtain the mathematical model of the vessels by adapting them to various ship sizes and types.

According to a Mayan belief, in order to relax and strengthen the spirit after a certain period of rapid living, it is necessary to occasionally think about, analyze and evaluate the past. This was believed to be beneficial both for the rest of the soul and for the development of the mind. In order to understand and evaluate the maritime sector better and to be able to make strategic decisions for the future, we have to get rid of the effects of actual happenings in maritime markets and calmly evaluate the events from a wide perspective. In this study, we will try to address the recent economic developments in the industry and find out the implications of these developments in the global maritime market and shipbuilding industry and their reflections on Turkey. Moreover, we will examine in particular shipbuilding, container, tanker and bulk markets on a global basis in the light of current data and finally we will refer to some precautions that can be taken in Turkey.

In this study, it is aimed to investigate the occupational accidents and risk factors on Turkish flagged ships. For this purpose, the data on 234 cases of the occupational accident occurred on the Turkish flagged ships between 06.10.2011 and 04.02.2014 registered in the database of Turkish Social Security Institution (SGK) were obtained, classified and analyzed with SPSS 21 software.