Abstract
The numerical prediction of added resistance and vertical ship motions of one ITTC (International Towing Tank Conference) S-175 containership in regular head waves by our own in-house unsteady RANS solver naoe-FOAM-SJTU is presented in this paper. The development of the solver naoe-FOAM-SJTU is based on the open source CFD tool, OpenFOAM. Numerical analysis is focused on the added resistance and vertical ship motions (heave and pitch motions) with four very different wavelengths (0.8L pp ≤ λ ≤ 1.5L pp ) in regular head waves. Once the wavelength is near the length of the ship model, the responses of the resistance and ship motions become strongly influenced by nonlinear factors, as a result difficulties within simulations occur. In the paper, a comparison of the experimental results and the nonlinear strip theory was reviewed and based on the findings, the RANS simulations by the solver naoe-FOAM-SJTU were considered competent with the prediction of added resistance and vertical ship motions in a wide range of wave lengths.
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Foundation item: Supported by the National Natural Science Foundation of China (Grant No. 50739004 and 11072154)
Haixuan Ye is a graduate student in School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University. His current research field includes computational simulations of the added resistance, force and motion responses of ships when advancing in seaways.
Zhirong Shen is currently a PhD candidate in School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University. His research interests include computational ship hydrodynamics, wave generation method and a 6DoF motion of ship based on OpenFOAM. He is now working on the implementation of overset grid technique into OpenFOAM.
Decheng Wan is a professor of School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, and a distinguished professor of Shanghai Eastern Scholar. His research interests include marine hydrodynamics and computational fluid dynamics, marine numerical wave tank, nonlinear wave theory, fluid-structure interaction, high performance computation on complex flows, etc.
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Ye, H., Shen, Z. & Wan, D. Numerical prediction of added resistance and vertical ship motions in regular head waves. J. Marine. Sci. Appl. 11, 410–416 (2012). https://doi.org/10.1007/s11804-012-1150-1
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DOI: https://doi.org/10.1007/s11804-012-1150-1