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A vortex based panel method for potential flow simulation around a hydrofoil

A vortex based panel method for potential flow simulation around a hydrofoil
A vortex based panel method for potential flow simulation around a hydrofoil
A new vortexbasedpanelmethod is developed for the numerical simulation of a 2-D potential flow around a hydrofoil submerged under free surface with energy dissipation. Dissipative Green functions are employed in the proposed technique with the resulting solution determined from a vortex distribution on the hydrofoil. The energy dissipation over the free surface cancels the singularities of the frequency domain integration of the Green functions. Comparison of the present numerical results with experimental data and earlier numerical results show that the energy dissipation consideration is not only for the cancelation of the artificial singularities caused by the non-dissipative assumption in traditional potential flow computations but also for providing better agreement results.

panelmethod, potential flow, free-surface green function, hydrofoil
0889-9746
378-391
Chen, Zhi-Min
e4f81e6e-5304-4fd6-afb2-350ec8d1e90f
Chen, Zhi-Min
e4f81e6e-5304-4fd6-afb2-350ec8d1e90f

Chen, Zhi-Min (2012) A vortex based panel method for potential flow simulation around a hydrofoil. Journal of Fluids and Structures, 28, 378-391. (doi:10.1016/j.jfluidstructs.2011.10.003).

Record type: Article

Abstract

A new vortexbasedpanelmethod is developed for the numerical simulation of a 2-D potential flow around a hydrofoil submerged under free surface with energy dissipation. Dissipative Green functions are employed in the proposed technique with the resulting solution determined from a vortex distribution on the hydrofoil. The energy dissipation over the free surface cancels the singularities of the frequency domain integration of the Green functions. Comparison of the present numerical results with experimental data and earlier numerical results show that the energy dissipation consideration is not only for the cancelation of the artificial singularities caused by the non-dissipative assumption in traditional potential flow computations but also for providing better agreement results.

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More information

e-pub ahead of print date: 1 November 2011
Published date: January 2012
Keywords: panelmethod, potential flow, free-surface green function, hydrofoil
Organisations: Engineering Science Unit

Identifiers

Local EPrints ID: 208737
URI: http://eprints.soton.ac.uk/id/eprint/208737
ISSN: 0889-9746
PURE UUID: 061bc09a-d412-406d-b60e-91449fa43459

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Date deposited: 23 Jan 2012 10:06
Last modified: 14 Mar 2024 04:43

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Author: Zhi-Min Chen

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