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Remotely Operated Vehicle (ROV) is a tethered underwater mobile device which can facilitate for observing and exploring the ocean structures and also commercial activities such as oil and gas industry. Propulsion plays a significant role in the manoeuvrability of the ROV. This study investigates the effect of thruster on the performance of the ROV. Recently, Computational Fluid Dynamic (CFD) approach are common to analyze hydrodynamic force acting on a maneuvering underwater vehicle. In this paper, thrust of the ROV is estimated by the CFD simulation. After calculating thrust force, the translational velocities of the ROV are determined through a mathematical model of the motion of the ROV.
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