Improved HPC method for nonlinear wave tank

Wenbo Zhu; Marilena Greco; Yanlin Shao

doi:10.1016/j.ijnaoe.2017.03.009

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 language	English
Journal	International Journal of Naval Architecture and Ocean Engineering
Volume	9
Issue number	6
Pages (from-to)	598-612
ISSN	2092-6782
DOIs	https://doi.org/10.1016/j.ijnaoe.2017.03.009
Publication status	Published - 2017

Keywords

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

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10.1016/j.ijnaoe.2017.03.009

Improved HPC method for nonlinear wave tankFinal published version, 2.68 MBLicence: CC BY-NC-ND

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title = "Improved HPC method for nonlinear wave tank",

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.",

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language = "English",

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T1 - Improved HPC method for nonlinear wave tank

AU - Zhu, Wenbo

AU - Greco, Marilena

AU - Shao, Yanlin

PY - 2017

Y1 - 2017

N2 - 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.

AB - 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.

KW - : Harmonic polynomial cell method

KW - Potential-flow theory

KW - Flux method

KW - Fixed mesh

KW - Multi-block strategy

KW - Nonlinear numerical wave tank

U2 - 10.1016/j.ijnaoe.2017.03.009

DO - 10.1016/j.ijnaoe.2017.03.009

M3 - Journal article

SN - 2092-6782

VL - 9

SP - 598

EP - 612

JO - International Journal of Naval Architecture and Ocean Engineering

JF - International Journal of Naval Architecture and Ocean Engineering

IS - 6

ER -

Improved HPC method for nonlinear wave tank

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