A Simplified Panel Method (sPM) for Hydrodynamics of Air Cushion Assisted Platforms

Fengmei Jing, Song Wang, Zhiqun Guo*, Yurui Ni

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Air-cushion-assisted platforms (ACAPs) are floating platforms supported by both buoyancy pontoon and air cushion, which have merits of wave bending moment reduction, better stability, and hydrodynamic performance. However, there is barely a concise method that can quickly predict the motion response of ACAPs. In this paper, a simplified panel method (sPM) was presented for evaluating the hydrodynamics of ACAPs. The sPM extends the conventional boundary integral equation (BIE) to include the radiation solutions of pulsating air pressure but ignores some unimportant air-water cross terms in motion equations whose coefficients cannot be directly derived from conventional Green’s function methods. The effectiveness of the sPM was validated by experimental data from an ACAP model with one air chamber and analytical results from an oscillating water column (OWC). The numerical results demonstrate that the sPM can give desirable predictions for motion responses of the ACAP and inner pressure of the OWC as compared with results from the literature, which suggests the sPM could be approximately applied to evaluation of hydrodynamic performance of ACAPs and OWCs.

Original languageEnglish
Article number1554
JournalJournal of Marine Science and Engineering
Volume10
Issue number10
DOIs
Publication statusPublished - Oct 2022
Externally publishedYes

Keywords

  • air cushion assisted platform (ACAP)
  • boundary integral equation (BIE)
  • motion response
  • oscillating water column (OWC)
  • simplified panel method (sPM)

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