Simulation of the trajectory of a punted rugby ball taking into account the asymmetrical pressure distribution caused by the seams

Kazuya Seo, Osamu Kobayashi, Masahide Murakami, Daisuke Yorita, Hiroki Nagai, Keisuke Asai

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

This paper describes the effect of the seams of a rugby ball on the side force and the flight trajectory of the punted kick. Measurement of the aerodynamic force on a non-spinning rugby ball reveals that the side force coefficient depends on the position of the seam as well as the angle of attack. It was found from pressure-sensitive paint measurements that the seam of the ball is the trigger for initiating low pressure when the seam is situated around 60° from the stagnation point. The flight trajectory of the fluctuating ball can be obtained by numerically integrating the six degree-of-freedom non-linear equations of motion. It was shown that a slower spinning ball fluctuates from side to side during flight because of the asymmetrical pressure distribution on the sides of the ball.

Original languageEnglish
Pages (from-to)97-105
Number of pages9
JournalJournal of Visualization
Volume13
Issue number2
DOIs
Publication statusPublished - 2010 May 1

Keywords

  • Fluctuating flight trajectory
  • Pressure-sensitive paint
  • Punted kick
  • Rugby
  • Wind tunnel test

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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