A study on Computed Tomographic (CT) measurement technique of fluid by Colored-Grid Background Oriented Schlieren (CGBOS) technique

• Project/Area Number: 23760764
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Aerospace engineering
• Research Institution: Chiba University
• Principal Investigator: OTA Masanori 千葉大学, 大学院・工学研究科, 助教 (60436342)
• Project Period (FY): 2011 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2011: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
• Keywords: 航空宇宙工学 / 定量的密度計測 / 3次元計測 / コンピュータトモグラフィ / ３次元計測 / 航空宇宙流体力学

Research Abstract

In this study three-dimensional and quantitative density measurement by Colored-Grid Background Oriented Schlieren (CGBOS) technique together with Computed Tomography (CT) method is proposed. CGBOS technique using colored-grid background is developed by our own and applied to various experiment. Experiments are carried out in JAXA/ISAS supersonic wind tunnel and precise measurements of side jet/cross flow are achieved. Simultaneous CT measurement system using some digital cameras is built and required projection number (number of camera) is examined.

Research Products

• [Journal Article] Three-dimensional Density Measurementof Supersonic and Axisymmetric FlowField by Colored Grid BackgroundOriented Schlieren (CGBOS) Technique (2012)
  • Author(s): Masanori Ota, Hiroko Kato, Kazuo Maeno
  • Journal Title: International Journal of AerospaceInnovations Volume: Vol.4 Pages: 1-12
• [Journal Article] Quantitative Measurement of NaturalConvection fromMultiple Heat Sourcesusing Color- Stripe BackgroundOriented Schlieren (CSBOS) CT Method (2012)
  • Author(s): M. F. Zeb, M. Ota, K. Maeno
  • Journal Title: Journal of the Japanese Society for Experimental Mechanics Volume: Vol.12 Pages: 86-91
• [Journal Article] Three-dimensional Density Measurement of Supersonic and Axisymmetric Flow Field by Colored Grid Background Oriented Schlieren (CGBOS) Technique (2012)
  • Author(s): Masanori Ota, Hiroko Kato, Kazuo Maeno
  • Journal Title: International Journal of Aerospace Innovations Volume: 4 Pages: 1-12
  • Peer Reviewed
• [Journal Article] Quantitative Measurement of Natural Convection from Multiple Heat Sources using Color-Stripe Background Oriented Schlieren (CSBOS) CT Method (2012)
  • Author(s): M. F. Zeb, M. Ota, K. Maeno
  • Journal Title: Journal of the Japanese Society for Experimental Mechanics Volume: 12 Pages: 86-91
  • Peer Reviewed
• [Presentation] Quantitative Density Measurement of the Interaction Field ofSide Jet and Cross Flow by Colored- GridBackground Oriented Schlieren (CGBOS)Technique (2013)
  • Author(s): M. Ota, K. Maeno
  • Organizer: The 29th InternationalSymposium on Shock Waves
• [Presentation] Colored-Grid Background Oriented Schlieren(CGBOS)法による飛翔体表面からのジェットと主流の干渉場に対する定量的密度計測 (2013)
  • Author(s): 太田匡則,申嘯,菊間悠介,川上浩史,三輪善広,稲毛達朗,前野一夫
  • Organizer: 平成24年度衝撃波シンポジウム講演論文集
• [Presentation] Colored-Grid Background Oriented Schlieren (CGBOS)法による飛翔体表面からのジェットと主流の干渉場に対する定量的密度計測 (2013)
  • Author(s): 太田匡則，申嘯，菊間悠介，川上浩史， 三輪善広，稲毛達朗，前野一夫
  • Organizer: 平成24年度衝撃波シンポジウム
  • Place of Presentation: 北九州国際会議場
• [Presentation] Quantitative Density Measurement of the Interaction Field of Side Jet and Cross Flow by Colored-Grid Background Oriented Schlieren (CGBOS) Technique (2013)
  • Author(s): M. Ota, K. Maeno
  • Organizer: The 29th International Symposium on Shock Waves
  • Place of Presentation: Madison, WI (USA)
• [Presentation] Quantitative 3D-CTdensity measurement of supersonic flowfield around an asymmetric model usingcolored-grid background orientedschlieren (CGBOS) technique (2012)
  • Author(s): SHEN Xiao, KATO Hiroko, OTA Masanori,MAENO Kazuo
  • Organizer: ISEM-ACEM-SEM-7th ISEM'12-Taipei
• [Presentation] 超音速流れに対するColored-Grid Background Oriented Schlieren(CGBOS)法による定量的密度計測へのテレセントリック光学系の導入について (2012)
  • Author(s): 太田匡則,前野一夫
  • Organizer: 第90期日本機械学会流体工学部門講演会講演論文集
• [Presentation] BOS法による自然対流の定量的CT計測 (2012)
  • Author(s): 前野一夫,Falak M.Zeb,太田匡則
  • Organizer: 第90期日本機械学会流体工学部門講演会講演論文集
• [Presentation] Improvementsof Spatial Resolution of Colored-GridBackground Oriented Schlieren (CGBOS)Technique by Introducing Telecentric Optical System, Proc (2012)
  • Author(s): M. Ota, H. Kato, K. Maeno
  • Organizer: of 15thInternational Symposium on Flow Visualization
• [Presentation] Comparison between CBOS(Colored Background OrientedSchileren) and CGBOS (Colored ‐ GridBackground Oriented Schlieren) forSupersonic Flow (2012)
  • Author(s): M. Ota, F. Leopold, F. Jagusinski, K.Maeno
  • Organizer: Proc. of 15thInternational Symposium on FlowVisualization
• [Presentation] テレセントリック光学系によるBOS法の計測精度の改善について (2012)
  • Author(s): 太田匡則,加藤浩子,申嘯,佐藤速夫,前野一夫
  • Organizer: 平成23年度衝撃波シンポジウム講演論文集
• [Presentation] Comparison between CBOS (Colored Background Oriented Schileren) and CGBOS (Colored‐Grid Background Oriented Schlieren) for Supersonic Flow (2012)
  • Author(s): M. Ota, F. Leopold, F. Jagusinski, K. Maeno
  • Organizer: The 15th International Symposium on Flow Visualization
  • Place of Presentation: Minsk, Belarus
• [Presentation] Improvements of Spatial Resolution of Colored-Grid Background Oriented Schlieren (CGBOS) Technique by Introducing Telecentric Optical System (2012)
  • Author(s): M. Ota, H. Kato, K. Maeno
  • Organizer: The 15th International Symposium on Flow Visualization
  • Place of Presentation: Minsk, Belarus
• [Presentation] Quantitative 3D-CT density measurement of supersonic flow field around an asymmetric model using colored-grid background oriented schlieren (CGBOS) technique (2012)
  • Author(s): SHEN Xiao, KATO Hiroko, OTA Masanori, MAENO Kazuo
  • Organizer: SEM-ACEM-SEM-7th ISEM'12-Taipei
  • Place of Presentation: Taipei, Taiwan
• [Presentation] 超音速流れに対するColored-Grid Background Oriented Schlieren (CGBOS)法による定量的密度計測へのテレセントリック光学系の導入について (2012)
  • Author(s): 太田匡則，前野一夫
  • Organizer: 第90期日本機械学会流体工学部門講演会
  • Place of Presentation: 同志社大学
• [Presentation] BOS法による自然対流の定量的CT計測 (2012)
  • Author(s): 前野一夫，Falak M. Zeb，太田匡則
  • Organizer: 第90期日本機械学会流体工学部門講演会
  • Place of Presentation: 同志社大学
• [Presentation] テレセントリック光学系によるBOS法の計測精度の改善について (2012)
  • Author(s): 太田匡則，加藤浩子，申嘯，佐藤速夫，前野一夫
  • Organizer: 平成23年度衝撃波シンポジウム
  • Place of Presentation: 東京大学柏の葉キャンパス
• [Presentation] Quantitative measurement andreconstruction of 3D density field byCGBOS (colored grid backgroundoriented Schlieren) technique (2011)
  • Author(s): Masanori OTA, Kazuo MAENO
  • Organizer: Proc.of the 28th International Symposium onShock Waves
• [Presentation] Quantitative measurement and reconstruction of 3D density field by CGBOS (Colored Grid Background Oriented Schlieren) Technique (2011)
  • Author(s): M. Ota, H. Kato, R. Sakamoto, Kazuo Maeno
  • Organizer: 28th International Symposium on Shock Waves
  • Place of Presentation: The University of Manchester
• [Remarks]
  • URL: http://shock.tu.chiba-u.ac.jp