Development of numerical method to simulate flows around a ship in regular waves including the effect of ship propulsion plant model
Document typeConference report
Rights accessOpen Access
A numerical method to simulate flows with propeller effects including the responce of a ship propulsion plant has been developed. The dynamics of a ship propulsion plant is modeled by the function of the diesel engine cntrol system. Propeller torque which is computed by the propeller model with the interaction of flow fields is put to the ship propusion plant model, then the propeller rotational speed is obtained by solving the equation of the rotational motion of the propeller shaft line. Present method can reproduce the time history of propeller rotational speed and torque in the condition with the regular waves. The amplitude of fluctuations shows agreement with the measured data. The detail analysis of flow fields and ship motions which is difficult to be obtained at the experiment is also carried out.
CitationOhashi, K. Development of numerical method to simulate flows around a ship in regular waves including the effect of ship propulsion plant model. A: MARINE VII. "MARINE VII : proceedings of the VII International Conference on Computational Methods in Marine Engineering". CIMNE, 2017, p. 975-984. ISBN 978-84-946909-8-3.
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