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CFD Analysis on Seakeeping Performance of a High-Speed Craft
Siti Nurhayati Binti Zamri
Supervisor: Assoc. Prof. Ir. Dr. Eng. Ahmad Fitriadhy
Bachelor of Applied Science (Maritime Technology)
School of Ocean Engineering
Universiti Malaysia Terengganu
A reliable investigation which allows an accurate prediction on seakeeping
performance of a high-speed craft is required. To achieve this objective, a
Computational Fluid Dynamic approach is proposed to obtain precise outcomes, whilst
a rationale hydrodynamic description results is explained. Several effects of Froude
number, wavelength, wave height and wave directions on vertical motion (heave and
pitch motion) were examined. The results proved that the increase of Froude number
was proportional with the increase of vertical motions presented in the Response
Amplitude Operators (RAO). In shorter wavelengths, RAO of the vertical motions were
trifling but the increased of wavelength was proportional with the increased RAO of
the vertical motions. The increase in wave height is equivalent increase in the vertical
motions that may lead to worsen her seakeeping quality. It is concluded that the
effects of Fr, wavelength and waveheight on the vertical motions of the high-speed
craft had varies occurrence. These results are useful as preliminary prediction for
navigation safety during sailing.
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