COMPUTATIONAL IMPACT PRESSURE OF THE FLOATPLANE’S BOTTOM IN VARIOUS OF DEADRISE AND FLARE ANGLES

Aries Sulisetyono*, Zambilly A. Washoya, Achmad Zubaydi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The water impact at the bottom of a floatplane upon landing is one of the biggest concerns related to the structure strength. The free fall of the floater to the water’s surface is ideal for modelling to acquire a pressure value against the optimal design angle of the deadrise and flare. The impact pressure due to free-falling of the 2D cross-section of the floater at four different deadrise angles is computed using the computational fluid dynamics (CFD) technique in FLUENT's dynamic mesh feature. According to the simulation results, the angle of deadrise impacts the pressure on the floater bottom area that decreases along with the increase in deadrise angle. Flares also help to lessen the pressure value under all deadrise angle scenarios. All models have good agreement when compared to the modified Wagner's formula, with an average inaccuracy of roughly 5.27 percent.

Original languageEnglish
Pages (from-to)937-945
Number of pages9
JournalJournal of Applied Engineering Science
Volume20
Issue number3
DOIs
Publication statusPublished - 2022

Keywords

  • deadrise angle
  • flare
  • floatplane
  • free fall
  • impact pressure

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