Improved HPC method for nonlinear wave tank
Journal article, Peer reviewed
Published version
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Date
2017Metadata
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- Institutt for marin teknikk [3473]
- Publikasjoner fra CRIStin - NTNU [38628]
Original version
International Journal of Naval Architecture and Ocean Engineering. 2017, . https://doi.org/10.1016/j.ijnaoe.2017.03.009Abstract
The recently developed Harmonic Polynomial Cell (HPC) method has been proved to be a promising choice for solving potential-flow Boundary Value Problem (BVP). In this paper, a flux method is proposed to consistently deal with the Neumann boundary condition of the original HPC method and enhance the accuracy. Moreover, fixed mesh algorithm with free surface immersed is developed to improve the computational efficiency. Finally, a two dimensional (2D) multi-block strategy coupling boundary-fitted mesh and fixed mesh is proposed. It limits the computational costs and preserves the accuracy. A fully nonlinear 2D numerical wave tank is developed using the improved HPC method as a verification.