Dynamic wind tunnel testing of delta-wing model without support interference

Daiki Kai, Hiroki Sugiura, Asei Tezuka

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

The understanding of the dynamic characteristics of an airplane at high angles of attack (AOAs) is essential in making accurate predictions regarding its behavior. A magnetic suspension and balance system (MSBS) suspends a model without physical support systems, thus enabling wind tunnel tests to be conducted without support interference. In this study, longitudinal dynamic characteristics of a delta-wing aircraft model at AOAs of up to 20° were investigated using an MSBS that could suspend an aircraft model continuously within an AOA range of ±40°. The acquired data were fitted to the dynamic derivative model using multiple regression analysis, considering the AOA acceleration. Additionally, the flowfield over the wing was also acquired by conducting particle image velocimetry (PIV) tests. For AOAs of ±5.9°, the dynamic aerodynamic forces agreed well with the dynamic derivative model. However, at higher AOAs, the dynamic derivative model was not sufficient for describing the aerodynamic forces. From the PIV tests, it was observed that the position of the vortex core during the pitch motion moved around the positions observed in the static cases.

本文言語English
ホスト出版物のタイトルAIAA Scitech 2020 Forum
出版社American Institute of Aeronautics and Astronautics Inc, AIAA
ページ1-13
ページ数13
ISBN(印刷版)9781624105951
DOI
出版ステータスPublished - 2020
イベントAIAA Scitech Forum, 2020 - Orlando, United States
継続期間: 2020 1 62020 1 10

出版物シリーズ

名前AIAA Scitech 2020 Forum
1 PartF

Conference

ConferenceAIAA Scitech Forum, 2020
国/地域United States
CityOrlando
Period20/1/620/1/10

ASJC Scopus subject areas

  • 航空宇宙工学

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