Hydrodynamic analysis of Remotely Operated Vehicle (ROV) Observation Class using CFD

Abstract

Remotely Operated Vehicle (ROV) is a small marine craft used for underwater observation. Hence, the analysis of hydrodynamic characteristics is important. Hydrodynamic characteristics can be obtained by fluid dynamic visualization and simulation of Computational Fluid Dynamic (CFD). In this paper, ROV Hydrodynamic characteristics begin by forming a three-dimensional (3D) ROV model, forming link elements (mesh) from the 3D ROV model, and forming the computational domain used for CFD simulations. CFD simulations were conducted by analyzing the fluid flow angle variations that represent motion of the ROV, namely translational motion and rotational motion towards the vertical axis (yaw). The simulation results obtained were compared with the previous ROV design that had been developed, so as to obtain an evaluation of the results of the design optimization. The results showed an increase in the hydrodynamic characteristics of the optimal ROV design indicated by the value of drag, pressure distribution, and fluid flow contour.

Development stages of a semi-autonomous underwater vehicle experiment platform

“…These parameters would allow simulations of CFD Programs. 16 Dynamic model of a low-speed UV could be obtained by means of CFD analysis. 17 UV measures some parameters, such as orientations and corresponding velocities referring to the body frame.…”

“…The hydrodynamic behavior of a vehicle could be extracted by fluid dynamic imaging and simulations of the CFD. 16 In a case study, the mathematical model of a low-speed AUV was extracted by means of CFD analysis for two critical hydrodynamic parameters, which are added mass ( M A ) and damping matrices. 17…”

“…The hydrodynamic behavior of a vehicle could be extracted by fluid dynamic imaging and simulations of the CFD. 16 In a case study, the mathematical model of a low-speed AUV was extracted by means of CFD analysis for two critical hydrodynamic parameters, which are added mass (M A ) and damping matrices. 17 The mechanical, electronic, and software designs of a UV test platform (TP), which has been developed by the Kocaeli University Electronics and Telecommunications Department between 2013 and 2020 and is called the Lucky Fin Project, are introduced in this study.…”

Computational fluid dynamic study on design and modification of underwater remotely operated vehicle

“…Determined the hydrodynamic forces and coefficient of an underwater vehicle using a numerical and experimental approach. They measured the hydrodynamic coefficient and flow properties across the vehicle body for the purposes of numerical study using Computational Fluid Dynamics (CFD) Fluent [9]. With the significant growth of the computer hardware capability in the recent decades, the applications of Computational-Fluid Dynamics (CFD) in the hydrodynamics study tend to become prevailing [10][11][12][13].…”

Structural Design and Hydrodynamic Coefficient Calculation of Observation-class ROVs

“…The accuracy of the empirical formula estimation method is relatively lower than the latter two and is mostly used for inertial hydrodynamic coefficient calculations and hydrodynamic coefficient calculations that do not significantly affect the model calculation results of the second order and above. The accuracy of the hydrodynamic coefficient obtained by the ship model test method is the highest among these three methods, but the cost and requirements of the test equipment are high [6,7]. The method of simulating ship model tests using CFD technology has advantages such as being unaffected by the accuracy of the test equipment and low cost, and can provide an ideal simulation environment that is not disturbed by the external environment, so it is widely used to calculate the hydrodynamic coefficients of underwater vehicles [8].…”