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A Study on the Motion of Partial Air Cushion Support Catamaran in Regular Head Waves

College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China
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Water 2019, 11(3), 580; https://doi.org/10.3390/w11030580
Received: 11 January 2019 / Revised: 13 March 2019 / Accepted: 14 March 2019 / Published: 20 March 2019

Abstract

In this paper, the motion of partial air cushion support catamaran (PACSCAT) sailing in regular waves was firstly investigated by the experimental method. The monitored histories of heave, pitch, midship acceleration, and air cushion pressure in towing tests are performed to analyze the influence of air cushion on the periodicity feature of hull body motion. Subsequently, using the finite volume method (FVM)-based CFD software Star-ccm, numerical simulations are carried out for the PACSCAT model with a simplification of the air cushion system. The detailed flow information of wave evolution, pressure, and velocity distribution is investigated. The calculated oscillation characteristics of different motion parameters are compared with those from experiment and show good agreement. The numerical method also has good capacity in the prediction of amplitude response of heave and midship acceleration; however, large error is found when calculating resistance and amplitude response of pitch. View Full-Text
Keywords: partial air cushion support catamaran (PACSCAT); model test; regular wave; numerical calculation; amplitude response partial air cushion support catamaran (PACSCAT); model test; regular wave; numerical calculation; amplitude response
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Yang, J.; Lin, Z.; Gao, Z.; Li, P. A Study on the Motion of Partial Air Cushion Support Catamaran in Regular Head Waves. Water 2019, 11, 580.

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