Development of a 4D-measurement technology of wind pressure with PSP and its application to the pressure field over wind waves

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H04050
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Hydraulic engineering
• Research Institution: Kindai University
• Principal Investigator: TAKEHARA Kohsei 近畿大学, 理工学部, 教授 (50216933)
• Co-Investigator(Kenkyū-buntansha): 中北 和之 国立研究開発法人宇宙航空研究開発機構, 航空技術部門, 主幹研究開発員 (50358595) ; 江藤 剛治 大阪大学, 工学研究科, 招へい教授 (20088412)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 感圧塗料計測 / 高速ビデオカメラ / 波面上の圧力分布

Outline of Final Research Achievements

(1) A Lifetime (LT) PSP measurement of the areal pressure distribution on a solid wing model under a periodic up-and-down motion was developed with multiple illuminations and the signal accumulation method. (2) Furthermore, the pressure distribution on a flexible wing under a high-speed air flow of Mach 0.89 was successively and successfully imaged with the LT-PSP method. (3) An image sensor operating at the time interval of 10 ns with ten consecutive frames was developed. The sensor successfully captured "The Light-in-Flight image" for the first time in the world as an silicon image sensor. (4) A pressure measurement on a small wavy model under a low speed air flow, such as 10 m/s, was tested. The PSP intensity method captured a general tendency of the pressure distribution in the flow direction.

Free Research Field

水工学