Numerical investigation of wave elevation and bottom pressure generated by a planing hull in finite-depth water

Angelantonio Tafuni, Iskender Sahin, Mark Hyman

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

A numerical investigation of the bottom pressure and wave elevation generated by a planing hull in finite-depth water is presented. While the existing literature addresses the free-surface deformation and pressure field at the seafloor independently, this work proposes a direct comparison between the two hydrodynamic quantities. The dependence of the pressure disturbances at the ocean floor from the waves generated at the free-surface by a planing hull is studied for several values of both the depth and hull Froude numbers. The methodology employed is Smoothed Particle Hydrodynamics (SPH), a numerical technique based on the discretization of the continuum fields of hydrodynamics through mesh-less particles. The SPH code herein chosen is initially validated against experimental data for transom-stern flow. Subsequently, numerical simulations are presented for a planing hull in high-speed regimes. The results show a direct correlation between surface wave dynamics and hydrodynamic pressure disturbances at the seafloor as the value of the Froude number is varied. This is assessed by studying the inverse dependence of the low-pressure wake angle with the Froude number and by comparison of SPH results with similar works in the cited literature.

Original languageEnglish (US)
Pages (from-to)281-291
Number of pages11
JournalApplied Ocean Research
Volume58
DOIs
StatePublished - Jun 1 2016
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Ocean Engineering

Keywords

  • Bottom pressure
  • Free-surface
  • Froude number
  • High-speed vessel
  • Planing
  • SPH
  • Shallow water
  • Transom
  • Waves

Fingerprint

Dive into the research topics of 'Numerical investigation of wave elevation and bottom pressure generated by a planing hull in finite-depth water'. Together they form a unique fingerprint.

Cite this