Developing three-dimensional qualitative visualization method for supersonic jets flow field using rainbow schlieren computed tomography

• Project/Area Number: 15K05805
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Fluid engineering
• Research Institution: The University of Kitakyushu
• Principal Investigator: Nakao Shinichiro 北九州市立大学, 国際環境工学部, 准教授 (40331029)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2015: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: 超音速 / 定量化 / 可視化 / 衝撃波 / シュリーレン / 噴流 / 3次元 / レインボーシュリーレン / 3次元密度場計測 / 超音速噴流 / CT計測 / 密度場

Outline of Final Research Achievements

The rainbow schlieren deflectometry is combined with the computed tomography to obtain three-dimensional density fields of a shock-containing free jet issued from a Laval nozzle(1mm*1ｍｍ). Experiments have been performed at a nozzle operating pressure of where the nozzle is operated at a slightly underexpanded condition. Multidirectional rainbow schlieren pictures of the jet can be acquired by rotating the nozzle about its longitudinal axis in equal angular intervals and the three-dimensional density fields are reconstructed by two types of image analyses for experimental data It is found that excellent quantitative agreement is reached between the jet three-dimensional density fields reconstructed from both the algorithms. The present rainbow schlieren technique is found to be significantly effective to examine a fine shock-cell structure of the shock-containing jet and makes it possible to provide experimental data with high accuracy and reliability on the jet density field.

Research Products

• [Journal Article] Optical Measurements of Shock Waves in Critical Nozzles at Low Reynolds Numbers (2017)
  • Author(s): Yagi,S., Inoue,S., Nakao,S., Ono,D., and Miyazato,Y.
  • Journal Title: Journal of Flow Control, Measurements & Visualization Volume: 5 Issue: 02 Pages: 36-50
  • DOI: 10.4236/jfcmv.2017.52003
  • Peer Reviewed / Open Access
• [Journal Article] Three-Dimensional Rainbow Schlieren Measurements in Underexpanded Sonic Jets from Axisymmetric Convergent Nozzles (2016)
  • Author(s): Takano, H., Kamikihara, D., Ono, D., Nakao, S., Yamamoto, H., and Miyazato, Y.
  • Journal Title: Journal of Thermal Science Volume: 25 Issue: 1 Pages: 78-83
  • DOI: 10.1007/s11630-016-0836-0
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Presentation] 矩形超音速マイクロノズルからの自由噴流の研究（流れの定量的可視化計測） (2018)
  • Author(s): 前田洋明，仲尾晋一郎，宮里義昭，石野洋二郎
  • Organizer: 日本機械学会九州支部第71期総会・講演会
• [Presentation] マッハ・ツェンダー干渉計による遷音速ディフューザ内の衝撃波の可視化 (2017)
  • Author(s): 後藤祥太, 後藤史也, 仲尾晋一郎, 小野大輔, 宮里義昭
  • Organizer: 平成 28 年度衝撃波シンポジウム
  • Place of Presentation: ヴェルクよこすか(神奈川県横須賀市)
  • Year and Date: 2017-03-08
• [Presentation] レインボーシュリーレン法によるショックトレーンの可視化 (2017)
  • Author(s): 松山淳志, 高野博史, 小野大輔, 仲尾晋一郎, 宮里義昭
  • Organizer: 平成 28 年度衝撃波シンポジウム
  • Place of Presentation: ヴェルクよこすか(神奈川県横須賀市)
  • Year and Date: 2017-03-08
• [Presentation] 超音速マイクロノズルからの自由噴流の研究（数値シミュレーション） (2017)
  • Author(s): 福田光，仲尾晋一郎，宮里義昭，石野洋二郎
  • Organizer: 日本機械学会九州支部久留米講演会
• [Presentation] 矩形ラバルノズルからの不足膨張超音速噴流に関する三次元数値計算 (2017)
  • Author(s): 前田眞之介，仲尾晋一郎，宮里義昭
  • Organizer: 日本機械学会九州支部久留米講演会
• [Presentation] Structure of underexpanded supersonic jets from axisymmetric Laval nozzles (2017)
  • Author(s): MAEDA Hiroaki, FUKUDA Hikaru, KUBO Kazunori, NAKAO Shinichiro, ONO Daisuke, and MIYAZATO Yoshiaki
  • Organizer: 11th Pacific Symposium on Flow Visualization and Image Processing
  • Int'l Joint Research
• [Presentation] Computer flow visualization of underexpanded jets from axisymmetric supersonic micro nozzles (2017)
  • Author(s): FUKUDA Hikaru, MAEDA Hiroaki, ONO Daisuke, NAKAO Shinichiro, MIYAZATO Yoshiaki, and ISHINO Yojiro
  • Organizer: 11th Pacific Symposium on Flow Visualization and Image Processing
  • Int'l Joint Research
• [Presentation] Rainbow schlieren measurements in underexpanded jets from square supersonic micro nozzles (2017)
  • Author(s): MAEDA Hiroaki, FUKUDA Hikaru, NAKAO Shinichiro, MIYAZATO Yoshiaki, and ISHINO Yojiro
  • Organizer: Experimental Fluid Mechanics 2017
  • Int'l Joint Research
• [Presentation] Study of free jets from axisymmetric supersonic micro nozzles (Part 1, Quantitative flow visualization) (2017)
  • Author(s): FUKUDA Hikaru, NAKAO Shinichiro, MIYAZATO Yoshiaki, and ISHINO Yojiro
  • Organizer: 14th International Conference on Flow Dynamics
  • Int'l Joint Research
• [Presentation] Study of free jets from axisymmetric supersonic micro nozzles (Part 2, RANS simulation) (2017)
  • Author(s): FUKUDA Hikaru, NAKAO Shinichiro, MIYAZATO Yoshiaki, and ISHINO Yojiro
  • Organizer: 14th International Conference on Flow Dynamics
  • Int'l Joint Research
• [Presentation] CFD Simulations of shock containing free jets from square supersonic nozzles (2017)
  • Author(s): MAEDA Shinnosuke, KUBO Kazunori, NAKAO Shinichiro, ONO Daisuke, and MIYAZATO Yoshiaki
  • Organizer: 13th International Symposium on Experimental and Computational Aerothermodynamics of Internal Flows
  • Int'l Joint Research
• [Presentation] 円筒ノズル噴流に対するレインボーシュリーレン法の適用 (2017)
  • Author(s): 八木奏一郎，仲尾晋一郎，小野大輔，宮里義昭，中島涼太
  • Organizer: 日本機械学会 九州支部 第70期 総会・講演会
  • Place of Presentation: 佐賀大学理工学部(佐賀県佐賀市)
• [Presentation] 二次元ベンチュリノズルを通る過膨張流れの可視化計測 (2017)
  • Author(s): 井上 紗綾, 小野 大輔, 仲尾 晋一郎, 宮里 義昭
  • Organizer: 日本機械学会 九州学生会 第48回学生員卒業研究発表講演会
  • Place of Presentation: 琉球大学工学部（沖縄県中頭郡西原町）
• [Presentation] 矩形管内のショックトレーンのレインボーシュリーレン計測 (2017)
  • Author(s): 竹下 泰史, 小野 大輔, 仲尾 晋一郎, 宮里 義昭
  • Organizer: 日本機械学会 九州学生会 第48回学生員卒業研究発表講演会
  • Place of Presentation: 琉球大学工学部（沖縄県中頭郡西原町）
• [Presentation] 矩形ラバルノズルからの不足膨張超音速噴流の三次元密度場 (2017)
  • Author(s): 前田 眞之介, 仲尾 晋一郎, 小野 大輔, 宮里 義昭
  • Organizer: 日本機械学会 九州学生会 第48回学生員卒業研究発表講演会
  • Place of Presentation: 琉球大学工学部（沖縄県中頭郡西原町）
• [Presentation] Optical Flow Investigations of Shock Induced Flow Separation in Critical Nozzles at Low Reynolds Numbers (2016)
  • Author(s): S. Yagi, S. Inoue, S.Nakao, D. Ono, Y. Miyazato
  • Organizer: The Thirteenth International Conference on Flow Dynamics
  • Place of Presentation: 仙台国際センター(宮城県仙台市)
  • Year and Date: 2016-10-10
  • Int'l Joint Research
• [Presentation] Optical Measurements of Shock Wave Oscillations in Critical Nozzles at Low Reynolds Numbers (2016)
  • Author(s): S. Yagi, S. Inoue, S.Nakao, D. Ono, Y. Miyazato
  • Organizer: The Thirteenth International Conference on Flow Dynamics
  • Place of Presentation: 仙台国際センター(宮城県仙台市)
  • Year and Date: 2016-10-10
  • Int'l Joint Research
• [Presentation] RANS Simulation of Overexpanded Critical Nozzle Flows at Low Reynolds Numbers (2016)
  • Author(s): S. Yagi, S.Nakao, D. Ono, Y. Miyazato
  • Organizer: The Thirteenth International Conference on Flow Dynamics
  • Place of Presentation: 仙台国際センター(宮城県仙台市)
  • Year and Date: 2016-10-10
  • Int'l Joint Research
• [Presentation] RAINBOW SCHLIEREN MEASUREMENTS IN UNDEREXPANDED JETS FROM AXISYMMETRIC SUPERSONIC MICRO NOZZLES (2016)
  • Author(s): H. FUKUDA, H. MAEDA, D. ONO, S. NAKAO, Y. MIYAZATO and Y. ISHINO.
  • Organizer: The 27th International Symposium on Transport Phenomena
  • Place of Presentation: Honolulu, USA
  • Year and Date: 2016-09-20
  • Int'l Joint Research
• [Presentation] APPLICATION OF RAINBOW SCHLIEREN DEFLECTRY FOR SLIGHTLY UNDEREXPANDED SUPERSONIC JETS FROM AXISYMMETRIC LAVAL NOZZLES (2016)
  • Author(s): H. MAEDA, H. FUKUDA,D. ONO, S. NAKAO and Y. MIYAZATO
  • Organizer: The 27th International Symposium on Transport Phenomena
  • Place of Presentation: Honolulu, USA
  • Year and Date: 2016-09-20
  • Int'l Joint Research
• [Presentation] MEASUREMENTS OF SHOCK TRAIN OSCILLATIONSBY HIGH-SPEED MACH-ZEHNDER INTERFEROMETERS (2016)
  • Author(s): S. GOTO, K. KITAMURA, D. ONO, S. NAKAO, and Y. MIYAZATO
  • Organizer: The 27th International Symposium on Transport Phenomena
  • Place of Presentation: Honolulu, USA
  • Year and Date: 2016-09-20
  • Int'l Joint Research
• [Presentation] PRELIMINARY EXPERIMENTS ON QUANTITATIVE VISUALIZATION OF SHOCK TRAINS BYRAINBOW SCHLIEREN DEFLECTOMETRY (2016)
  • Author(s): A. MATSUYAMA, H. TAKANO, D. ONO, S. NAKAO and Y. MIYAZATO
  • Organizer: The 27th International Symposium on Transport Phenomena
  • Place of Presentation: Honolulu, USA
  • Year and Date: 2016-09-20
  • Int'l Joint Research
• [Presentation] MICHELSON INTERFEROMETRIC MEASUREMENTS AND NUMERICAL CALCULATIONSFOR AXISYMMETRIC SUPERSONIC MICROJETS (2016)
  • Author(s): T. MURANAKA, D. ONO,S. NAKAOand Y. MIYAZATO
  • Organizer: The 27th International Symposium on Transport Phenomena
  • Place of Presentation: Honolulu, USA
  • Year and Date: 2016-09-20
  • Int'l Joint Research
• [Presentation] MEASUREMENT OF OSCILLATING SHOCK TRAIN BY LASER SCHLIEREN METHODS (2016)
  • Author(s): K. KITAMURA, S. GOTO, D. ONO, S. NAKAO and Y. MIYAZATO
  • Organizer: The 27th International Symposium on Transport Phenomena
  • Place of Presentation: Honolulu, USA
  • Year and Date: 2016-09-20
  • Int'l Joint Research
• [Presentation] シュリーレンCTを用いた矩形先細ノズルによる不足膨張音速噴流の定量的可視化計測 (2016)
  • Author(s): 秋田勇太，小野大輔，仲尾晋一郎，宮里義昭
  • Organizer: 日本機械学会講演論文集,No. 168-1
  • Place of Presentation: 熊本大学，熊本県 熊本市
  • Year and Date: 2016-03-15
  • Int'l Joint Research
• [Presentation] Optical Measurements of Shock Wave Oscillationsin Transonic Diffusers by High-Speed Mach-Zehnder Interferometers (2016)
  • Author(s): Takuya OTA, Shinichiro NAKAO, Daisuke ONO, Yoshiaki MIYAZATO
  • Organizer: The American Institute of Aeronautics and Astronautics Science and Technology Forum and Exposition 2016
  • Place of Presentation: San Diego, USA
  • Year and Date: 2016-01-04
  • Int'l Joint Research
• [Presentation] Assessment of numerical simulation for underexpanded sonic jet issued from axisymmetric convergent nozzles (2015)
  • Author(s): Akita, Y., Nakao, S., Ono, D., and Miyazato, Y.
  • Organizer: 7th Asia-Pacific International Symposium on Aerospace Technology
  • Place of Presentation: Cairns, Australia
  • Year and Date: 2015-11-25
  • Int'l Joint Research
• [Presentation] Three-Dimensional Rainbow Schlieren Measurements in Underexpanded Sonic Jets from Axisymmetric Convergent Nozzles (2015)
  • Author(s): Hirofumi Takano, Daiyu Kamikihara, Daisuke Ono, Shinichiro Nakao, HidekiYamamoto, Yoshiaki Miyazato
  • Organizer: 12th International Symposium on Experimental and Computational Aerothermodynamics of Internal Flows
  • Place of Presentation: Lerici , Italy
  • Year and Date: 2015-07-13
  • Int'l Joint Research
• [Presentation] Quantitative Estimation for RANS-Simulation of Underexpanded Sonic Jets from Axisymmetric Convergent Nozzles (2015)
  • Author(s): Daiyu Kamikihara, Hirohumi Takano, Daisuke Ono,Shinichiro Nakao, Yoshiaki Miyazato
  • Organizer: 12th International Symposium on Experimental and Computational Aerothermodynamics of Internal Flows
  • Place of Presentation: Lerici , Italy
  • Year and Date: 2015-07-13
  • Int'l Joint Research