Hydrodynamic derivative determination based on CFD and motion simulation for a tow-fish

Go, Gwangsoo; Ahn, Hyung Taek

doi:10.1016/j.apor.2018.10.023

Cited by 32 publications

(13 citation statements)

References 22 publications

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“…In total, 375,708 elements and 383,339 nodes were generated with a global mean quality of 0.751476, which coincides with the literature reports [ 8 , 9 , 10 , 37 ], and that allows to consider such a mesh to be valid to perform the simulation.…”

Section: Hydrodynamic Parameters Identificationsupporting

confidence: 61%

“…The sweep method and two different sizings were programmed to generate the fluid mesh. The sizings were applied to the edges of the cube to obtain more elements near the mini-AUV [ 8 , 10 ]. Both hlsizings were set to give 70 divisions on the edges in

and

.…”

Section: Hydrodynamic Parameters Identificationmentioning

confidence: 99%

“…In order to estimate the hydrodynamic parameters of a prescribed underwater vehicle, different experimental methodologies have been reported in the literature [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 ], yet, the majority of them require the implementation of top-technological expensive gadgets and tools, which makes the design task difficult for those researchers whose budget and facilities are an issue to overcome. In this regard, the implementation of Computed Fluid Dynamics (CFD) software and other computational resources has emerged as an alternative to conceive the vehicles at the first stages of research.…”

Section: Introductionmentioning

confidence: 99%

“…The methodologies that were adopted by a scientist to accurately estimate the vehicles hydrodynamic characteristics are mainly those that have been used in experimental studies; thus, the issue to overcome, besides the computational cost, is to imitate the real scenario conditions in the software environment; issue that has been widely discussed in the literature and that has gathered the attention of researchers in early decades [ 6 , 7 , 8 , 9 , 10 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

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Mini-AUV Hydrodynamic Parameters Identification via CFD Simulations and Their Application on Control Performance Evaluation

Castillo-Zamora

Camarillo‐Gómez

Pérez-Soto

et al. 2021

Sensors

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This manuscript presents a fully detailed methodology in order to identify the hydrodynamic parameters of a mini autonomous underwater vehicle (mini-AUV) and evaluate its performance using different controllers. The methodology consists of close-to-reality simulation using a Computed Fluid Dynamics (CFD) module of the ANSYS™ Workbench software, the processing of the data, obtained by simulation, with a set of Savistky–Golay filters; and, the application of the Least Square Method in order to estimate the hydrodynamic parameters of the mini-AUV. Finally, these parameters are considered to design the three different controllers that are based on the robot manipulators theory. Numerical simulations are carried out to evaluate the performance of the controllers.

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Section: Hydrodynamic Parameters Identificationsupporting

confidence: 61%

and

.…”

Section: Hydrodynamic Parameters Identificationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Mini-AUV Hydrodynamic Parameters Identification via CFD Simulations and Their Application on Control Performance Evaluation

Castillo-Zamora

Camarillo‐Gómez

Pérez-Soto

et al. 2021

Sensors

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show abstract

“…Wu et al [12] designed a controllable underwater towing system and examined the hydrodynamic and control behaviors using towing experiments and the Charge Coupled Device (CCD) underwater photogrammetric technique. Go and Ahn [13] proposed a method for determining hydrodynamic coefficients by using the Computational Fluid Dynamics (CFD) method to simulate the working conditions of a towed-fish. The hydrodynamic model obtained can be used to simulate the motion of a towed-fish.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Model Investigations of the Underwater Towing of a Subsea Module

Zan

Guo

Yuan

et al. 2019

JMSE

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In underwater towing operations, the drag force and vertical offset angle of towropes are important considerations when choosing and setting up towing equipment. The aim of this paper is to study the variation in drag force, vertical offset angle, resistance, and attitude for towing operations with a view to optimizing these operations. An underwater experiment was conducted using a 1:8 scale physical model of a subsea module. A comprehensive series of viscous Computational Fluid Dynamics (CFD) simulations were carried out based on Reynolds-averaged Navier–Stokes equations for uniform velocity towing. The results of the simulation were compared with experimental data and showed good agreement. Numerical results of the vorticity field and streamlines at the towing speeds were presented to analyze the distribution of vortexes and flow patterns. The resistance components were analyzed based on the numerical result. It was found that the lateral direction was a better direction for towing operations because of the smaller drag force, resistance, and offset angle. Similar patterns and locations of streamlines and vortexes were present in both the longitudinal and lateral directions, the total resistance coefficient decreases at a Reynolds number greater than that of a cylinder.

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Deep Tow System

Song,

Liu

2022

Encyclopedia of Ocean Engineering

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Hydrodynamic derivative determination based on CFD and motion simulation for a tow-fish

Cited by 32 publications

References 22 publications

Mini-AUV Hydrodynamic Parameters Identification via CFD Simulations and Their Application on Control Performance Evaluation

Mini-AUV Hydrodynamic Parameters Identification via CFD Simulations and Their Application on Control Performance Evaluation

Experimental and Numerical Model Investigations of the Underwater Towing of a Subsea Module

Deep Tow System

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