- 期刊
THE RESEARCH OF ADDED RESISTANCE IN WAVES BASED ON NONLINEAR TIME-DOMAIN POTENTIAL FLOW THEORY
摘要
In order to accurately predict the motion performance of the ship in waves, the numerical calculation of heave, pitch and added resistance of a container ship in a regular wave is studied based on the three-dimensional fully nonlinear time-domain potential flow theory. The boundary element method is used to deal with the quadrilateral elements, and the governing equations are solved by the first-order flat-plate theory and the fourth-order Runge- Kutta time integration method. The ship hull is divided by the fixed mesh. Considering the non-linear superposition of the forward velocity, the stationary ship wave, diffracted wave, diffraction wave and incident wave field, the free surface is generated by the hybrid Euler-Lagrangian method, and the damping area is set manually at the edge. Take the KCS container ship for instance, the calculation results of heave, pitch and added resistance in waves are compared with the experimental values. The results show that the biggest advantage of this method is to get a more accurate prediction of ship motion in a short time, and this method has a broad application prospect in the analysis and motion prediction of ship hydrodynamic performance in waves.
延伸閱讀
- Najafi, M., M.Moghimi, & H.Massah (2009). Analytical Treatment for Nonlinear Oscillation Equations and Vibratory System of Waves. Tamkang Journal of Mathematics, 40(1), 77-94. https://www.airitilibrary.com/Article/Detail?DocID=00492930-200903-201210250013-201210250013-77-94
- GHOSH, P., BASU, U., & MANDAL, B. N. (2000). WAVES DUE TO INITIAL DISTURBANCES AT THE INERTIAL SURFACE IN A STRATIFIED FLUID OF FINITE DEPTH. International Journal of Mathematics and Mathematical Sciences, 2000(), a265-276-136. https://doi.org/10.1155/S0161171200001605
- Wei, D., Skrzypacz, P., & Yu, X. (2017). Nonlinear Waves in Rods and Beams of Power-Law Materials. Journal of Applied Mathematics, 2017(), 1-6-006. https://doi.org/10.1155/2017/2095425
- Marwan (2010). On the Maximal Temporal Amplitude of Down Stream Running Nonlinear Water Waves. Tamkang Journal of Mathematics, 41(1), 51-69. https://www.airitilibrary.com/Article/Detail?DocID=00492930-201003-201012230068-201012230068-51-69
- Engelbrecht, J., Berezovski, A., & Soomere, T. (2010). Highlights in the Research into Complexity of Nonlinear Waves. Proceedings of the Estonian Academy of Sciences, 59(2), 61-65. https://www.airitilibrary.com/Article/Detail?DocID=17367530-201006-201010290094-201010290094-61-65