Foundation building for sports fluid engineering and development of standard fluid data

2014 Fiscal Year Final Research Report

• Project/Area Number: 24240084
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Sports science
• Research Institution: University of Tsukuba
• Principal Investigator: ASAI Takeshi 筑波大学, 体育系, 教授 (00167868)
• Co-Investigator(Kenkyū-buntansha): HONMA Miwako 筑波大学, 体育系, 教授 (80241800) ; TAKAGI Hideki 筑波大学, 体育系, 教授 (80226753) ; FUJII Norihisa 筑波大学, 体育系, 教授 (10261786) ; KOIKE Sekiya 筑波大学, 体育系, 准教授 (50272670)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: ボール / 空力 / 流体 / スポーツ / 抗力 / 揚力 / 基準 / 可視化

Outline of Final Research Achievements

In this study, steady-state and unsteady-state measurement and visualization methods were developed and integrated to establish the foundation for "sports fluid engineering." The critical Reynolds number of a typical football with 32 panels made from pentagonal and hexagonal pieces was found to be approximately 200,000. The lift during a ski jump with an attack angle of approximately 35° was found to be 230 N. We consider these results to be useful and representative of sports fluid data.

Free Research Field

スポーツテクノロジー