論文

査読有り
2021年

Experimental and Numerical Study of Hypersonic Flow over Backward-Facing Step

TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN
  • ZHONG Ce
  • ,
  • SUZUKI Kojiro
  • ,
  • WATANABE Yasumasa

19
5
開始ページ
735
終了ページ
743
記述言語
英語
掲載種別
DOI
10.2322/tastj.19.735
出版者・発行元
THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES

Experimental and numerical studies were conducted to investigate the flow over a backward-facing step with finite aspect ratio. Measurements using pressure-sensitive paint, infrared thermal imaging, oil-flow visualization and schlieren imaging were conducted in the Hypersonic and High Enthalpy Wind Tunnel at the University of Tokyo. The results show the complex three-dimensional structure of the flow over a backward-facing step. The numerical simulation was also conducted, and the simulation results reveal that the fluid flow from the open side of the model has significant three-dimensional effect on the flow features. Comparison between CFD and experimental results is also made in this paper. A recirculation bubble found after the step, generated by the interaction of side expansion and recirculating flow, is observed in CFD results. A symmetric local peak pressure and heating region named ‘twin peak’ is also founded by both numerical simulation and experiments.

リンク情報
DOI
https://doi.org/10.2322/tastj.19.735
CiNii Research
https://cir.nii.ac.jp/crid/1390852252714796544?lang=ja
URL
https://www.jstage.jst.go.jp/article/tastj/19/5/19_19.735/_pdf
ID情報
  • DOI : 10.2322/tastj.19.735
  • eISSN : 1884-0485
  • CiNii Articles ID : 130008084451
  • CiNii Research ID : 1390852252714796544

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