Improved HPC method for nonlinear wave tank

Wenbo Zhu, Marilena Greco, Yanlin Shao

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Abstract

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. Itlimits the computational costs and preserves the accuracy. A fully nonlinear 2D numerical wave tank is developed using the improved HPCmethod as a verification.
Original languageEnglish
JournalInternational Journal of Naval Architecture and Ocean Engineering
Volume9
Issue number6
Pages (from-to)598-612
ISSN2092-6782
DOIs
Publication statusPublished - 2017

Keywords

  • : Harmonic polynomial cell method
  • Potential-flow theory
  • Flux method
  • Fixed mesh
  • Multi-block strategy
  • Nonlinear numerical wave tank

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