To estimate the performance of submarine during the vertical maneuver, we need to understand components affect it. One of components that has influenced on a vertical maneuver of submarine is the use of hydroplane. To investigate the performance of the hydroplane, a numerical simulation based on CFD and experiment model are conducted. The numerical simulation has an advantage which more flexible, fast and cheap, while model experiment is conducted to validate the results of numerical simulation. During the model experiment, results obtained from measurements are confined to a lift force of stern plane.The aim of this investigation is to determine the lift force generated by hydroplane. The hydroplaneis designed by using the foil of a series NACA-0012. In this study, it will be analyzed some factors that influence on the hydroplane such as effect of variations in the vertical position of the bow plane, plane stern chord length, as well as angle of attack of hydroplane and velocity of fluid flow. Finally, the result of numerical simulation of stern plane is compared with result of model experiment.
Indonesian Hydrodynamic Laboratory, BPPT, Indonesia
Subsea pipeline is a medium of crude oil transportation which is operated in deep sea with variation of water depth such as shallow water, deep water and ultra deep water. Each of water level influence the mechanical properties of subsea pipeline. This paper describes the alteration of subsea pipeline properties such as stress and strain along with the alteration of water depth. To ensure the subsea pipeline integrity, the subsea pipeline is simulated with different water depth by using Finite element software ANSY Workbench. The results show that the equivalent stress and strain tend to decrease by increasing of water depth.
Department of Mechanical Engineering, Universitas Riau, Pekanbaru, 28293,Indonesia
Departement of Aeronautic, Automotive and Ocean Engineering, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, Malaysia
Ocean and Aerospace Research Institute (OCARI), Indonesia
This paper reviewed the capability of the proposed programming coded based on diffraction potential theory to predict a ship shape floating structure’s motion response. This paper briefly presents the procedure to apply the diffraction potential theory to simulate the ship shape floating structure’s motion response. As case study, the proposed programming code was applied to prediction motion responses of ship shape floating structure in surging, heaving, pitching, swaying, rolling and yawing directions. Results of simulation were compared with ANSYS AQWA software as bench mark. It found that the simulation results by the proposed programming code are similar with the ANSYS one.
Department of Aeronautics, Automotive and Ocean Engineering, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, Malaysia
Ocean and Aerospace Research Institute (OCARI), Indonesia
Department of Transportation and Environmental Systems, Hiroshima University, Japan
National Research Institute of Fisheries Engineering (NRIFE), Japan
