Abstract
In this paper, we present a Finite pointset method (FPM) for the numerical simulation of free surface flow around a ship in calm water. It is a Lagrangian and meshless particle scheme which is applied to the projection method for the incompressible governing equations. This requires the solution of Poisson problems in each time step, so a moving least squares (MLS) interpolants is used for the spatial derivatives in order to discretize the Poisson equation with pressure-Dirichlet condition of free surface flow in meshless structure. Meanwhile, an additional problem of the periodic particle locations redistribution in the present approach is still handled by MLS interpolants. With the proposed FPM technique, problems associated with the free surface flow around a ship are circumvented. A verification of numerical modeling is made using the Wigley hull and the validity of the proposed methodology is examined by comparing the detail of wave profile and wave-making resistance with Series 60 model. The results demonstrate that FPM is able to perform efficient and stable simulations of free surface flow around a ship.
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Acknowledgments
We would like to thank the National Natural Science Foundation of China (Grant No. 51379040) for the financial support of our research.
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Lu, Y., Hu, Ak. & Liu, Yc. A finite pointset method for the numerical simulation of free surface flow around a ship. J Mar Sci Technol 21, 190–202 (2016). https://doi.org/10.1007/s00773-015-0342-1
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DOI: https://doi.org/10.1007/s00773-015-0342-1