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Research Papers: CFD and VIV

Study of Maneuverability of Container Ship With Nonlinear and Roll-Coupled Effects by Numerical Simulations Using RANSE-Based Solver

[+] Author and Article Information
R. Rajita Shenoi

Department of Ocean Engineering,
IIT Madras,
Chennai 600036, India
e-mail: rajita.shenoy@gmail.com

P. Krishnankutty

Professor
Mem. ASME
Department of Ocean Engineering,
IIT Madras,
Chennai 600036, India
e-mail: pkrishnankutty@iitm.ac.in

R. Panneer Selvam

Professor
Department of Ocean Engineering,
IIT Madras,
Chennai 600036, India
e-mail: pselvam@iitm.ac.in

1Corresponding author.

Contributed by the Ocean, Offshore, and Arctic Engineering Division of ASME for publication in the JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING. Manuscript received June 30, 2015; final manuscript received February 5, 2016; published online April 7, 2016. Assoc. Editor: Celso P. Pesce.

J. Offshore Mech. Arct. Eng 138(4), 041801 (Apr 07, 2016) (14 pages) Paper No: OMAE-15-1059; doi: 10.1115/1.4032895 History: Received June 30, 2015; Revised February 05, 2016

The examination of maneuvering qualities of a ship is necessary to ensure its navigational safety and prediction of trajectory. The study of maneuverability of a ship is a three-step process, which involves selection of a suitable mathematical model, estimation of the hydrodynamic derivatives occurring in the equation of motion, and simulation of the standard maneuvering tests to determine its maneuvering qualities. This paper reports the maneuvering studies made on a container ship model (S175). The mathematical model proposed by Son and Nomoto (1981, “On Coupled Motion of Steering and Rolling of a High Speed Container Ship,” J. Soc. Nav. Arch. Jpn., 150, pp. 73–83) suitable for the nonlinear roll-coupled steering model for high-speed container ships is considered here. The hydrodynamic derivatives are determined by numerically simulating the planar motion mechanism (PMM) tests in pure yaw and combined sway–yaw mode using an Reynolds-Averaged Navier–Stokes Equations (RANSE)-based computational fluid dynamics (CFD) solver. The tests are repeated with the model inclined at different heel angles to obtain the roll-coupled derivatives. Standard definitive maneuvers like turning tests at rudder angle, 35 deg and 20 deg/20 deg zig-zag maneuvers are simulated using the numerically obtained derivatives and are compared with those obtained using experimental values.

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References

Figures

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Fig. 2

Earth-fixed and ship-fixed coordinate system

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Fig. 3

Path and orientation of model in pure yaw mode

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Fig. 4

Container ship (S175) model

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Fig. 5

Meshed fluid domain with boundaries labeled for dynamic simulation

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Fig. 6

Time history of force/moments for dynamic simulation in pure yaw mode

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Fig. 7

Model configuration in resistance test

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Fig. 8

Meshed fluid domain with boundaries labeled for static simulation

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Fig. 10

Variation of surge force with forward speed in static simulation

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Fig. 9

Surge force–time history at different forward speeds

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Fig. 11

Time history of force/moments for dynamic simulation in pure yaw at different heel angles

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Fig. 12

Plots to determine Yrφφ′,Nrφφ′, and Krφφ′

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Fig. 13

Force and moment, and yaw rate time history for heel angle, φ = −10 deg

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Fig. 14

Plots to determine Xφφ′,Yφ′,Nφ′, and Kφ′ from pure yaw with roll simulations

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Fig. 15

Plots to determine Xφφ′,Yφ′,Nφ′, and Kφ′ from pure yaw with roll simulations at different yaw rates

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Fig. 16

Plots to determine Yrrφ′, Nrrφ′, and Krrφ′

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Fig. 17

Path and orientation of model in combined sway–yaw mode

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Fig. 18

Time history of force/moments for dynamic simulation in combined sway–yaw mode

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Fig. 19

Turning circle test

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Fig. 21

Turning circle test (δ = 35 deg)

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Fig. 22

20 deg/20 deg zig-zag maneuver

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