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https://doi.org/10.1007/s12650-015-0297-7

has been cited by the following article:

• TITLE: The Quantitative Density Measurement of Unsteady Flow around the Projectile

  AUTHORS: Yusuke Hirose, Kazuki Ishikawa, Yoshiyuki Ishimoto, Takumi Nagashima, Masanori Ota, Shinsuke Udagawa, Tatsuro Inage, Kazuki Fujita, Hideki Kiritani, Koji Fujita, Kiyonobu Ohtani, Hiroki Nagai

  KEYWORDS: Background Oriented Schlieren, Flow Visualization, High Speed Flows, Unsteady Flow, Simultaneous Measurement

  JOURNAL NAME: Journal of Flow Control, Measurement & Visualization, Vol.7 No.2, April 28, 2019

  ABSTRACT: Three-dimensional density measurement of unsteady flow field around a sphere is carried out in the ballistic range at Institute of Fluid Science, Tohoku University. Simultaneous multi-angle measurement system using twelve digital cameras is installed in the test chamber of the ballistic range to achieve the three-dimensional density measurement. The Colored-Grid Background Oriented Schlieren (CGBOS) technique using colored-grid background is utilized for the reconstruction of density. The Mach number of the sphere is set to 1.5. The short pulse LEDs to illuminate the backgrounds are also installed in the chamber to capture the unsteady flow field around a flying sphere. Three-dimensional density distribution around a sphere is successfully reconstructed.