The Quantitative Density Measurement of Unsteady Flow around the Projectile

Autor:	Koji Fujita, Kazuki Ishikawa, Takumi Nagashima, Kazuki Fujita, Hideki Kiritani, Yusuke Hirose, Hiroki Nagai, Yoshiyuki Ishimoto, Tatsuro Inage, Kiyonobu Ohtani, Shinsuke Udagawa, Masanori Ota
Rok vydání:	2019
Předmět:	Flow visualization Physics Field (physics) Projectile business.industry System of measurement Pulse (physics) Physics::Fluid Dynamics symbols.namesake Optics Mach number Schlieren symbols Range (statistics) business
Zdroj:	Journal of Flow Control, Measurement & Visualization. :111-119
ISSN:	2329-3330 2329-3322
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0813de7404506efde6c778595368937c https://doi.org/10.4236/jfcmv.2019.72009 Zobrazit plný text záznamu