Impelementation of Numerical Method  For Hydrodynamic Behavior for Salvage of a Sunken Ship

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Jelodari, Ehsan | 2012

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 43150 (08)
University: Sharif University of Technology
Department: Mechanical Engineering
Advisor(s): Abbaspour, Majid
Abstract:
One of the utmost important factors during salvage operation of drowned ships is raising velocity. Uncontrolled raise is a dynamic phenomenon which can lead to the sudden tensions, collapse in airbags or ships. Studing this issue helps the engineers which kinds of problems are more important during salvage operations. This study focus on modeling and analysis of raising movment of the ship with FLOW-3D and ABAQUS software.
In FLOW-3D environment, hydrodynamic analysis of rising movment of drowned ship has been done. We should mention that applied forces and velocities and other parameters from the FLOW-3D output should be passed IMCA Criteria to avoid uncontrollable raise. In ABAQUS software focus on dynamic analysis of the problem. In this section the forces related to pressure, the buoyancy related to injected airbags, drag related to rising movment velocity in each height, applied on model in this software and tension analysis and study of the behavior of ship structure has been done.
The results shows suitable model for rising velocity of the drowned ship
Keywords:
Hydrodynamic Analysis ; Raising Movment ; Salvage Operation ; Drowned Ship

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