Application of Rainbow Schlieren Deflectometry for Shock-Containing Supersonic Jets

2013 Fiscal Year Final Research Report

• Project/Area Number: 23560204
• 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: MIYAZATO YOSHIAKI 北九州市立大学, 国際環境工学部, 教授 (30253537)
• Project Period (FY): 2011 – 2013
• Keywords: 衝撃波 / 超音速噴流 / シュリーレン法

Research Abstract

A rainbow schlieren system has been employed to determine the density fields in the underexpanded sonic jet from a cylindrical nozzle. As a result, the jet structure can be clearly observed by schlieren pictures with horizontal and vertical rainbow filters. Density profiles at any jet cross-section can be efficiently inferred from the Abel inversion of the schlieren images. Also, an analytical model to predict the flow properties through the cylindrical nozzle is proposed and compared with the present experimental results. Furthermore, conventional and improved nozzles for peeling leeks are used for qualitative and quantitative comparison of jets from their nozzles by the rainbow schlieren deflectometry. It is found that the jet from the improved nozzle has a high removing potential for peeling leeks in comparison with the conventional one.

Research Products

• [Presentation] Application of Rainbow Schlieren Techniques to Shock-Containing Jets from Cylindrical Nozzles (2014)
  • Author(s): Nakajima, R., Oka, T., Konishi, K., Ono, D., and Miyazato,Y.
  • Organizer: Scitech2014,AIAA Paper
  • Place of Presentation: Washington D.C., USA
  • Year and Date: 20140113-17
• [Presentation] Study of Shock Trains and Pseudo-Shock Waves in Constant Area Ducts (2014)
  • Author(s): Oka, T., Ono, D., and Miyazato,Y.
  • Organizer: Scitech2014,AIAA Paper
  • Place of Presentation: Washington D.C., USA
  • Year and Date: 20140113-17
• [Presentation] Application of Rainbow Schlieren Techniques for Leek Peeler Nozzle Jets (2013)
  • Author(s): Oka, T., Kunimasa, T., Ono, D., Miyazato,Y., Yoshino, K., and Etoh, T.
  • Organizer: APISAT2013
  • Place of Presentation: Takamatsu(CD-ROM)
  • Year and Date: 20131120-22
• [Presentation] Density Measurements in Cylindrical Nozzle Jets by Rainbow Schlieren Deflectometry (2013)
  • Author(s): Nakajima, R., Konishi, K., Oka, T., Ono, D., and Miyazato,Y.
  • Organizer: APISAT2013
  • Place of Presentation: Takamatsu(CD-ROM)
  • Year and Date: 20131120-22
• [Presentation] 干渉計を用いた遷音速ディフューザ流れの非定常密度場の可視化 (2013)
  • Author(s): 日高陽平,大田卓弥,大山祐哉,大池亜斗夢,小野大輔,宮里義昭
  • Organizer: 可視化情報
  • Place of Presentation: 会津(第33巻,増刊2号,pp. 173-174)
  • Year and Date: 20130927-28
• [Presentation] 円筒ノズルからの不足膨張音速噴流の光学観察 (2013)
  • Author(s): 秋田勇太,中島涼太,小西敬三,小野大輔,宮里義昭
  • Organizer: 可視化情報
  • Place of Presentation: 会津(第33巻,増刊2号,pp. 59-60)
  • Year and Date: 20130927-28
• [Presentation] ねぎ皮剥き用ノズルからの噴流の光学観察 (2013)
  • Author(s): 岡大志,國政隆之,小野大輔,宮里義昭,吉野和彦,江藤敏美
  • Organizer: 可視化情報
  • Place of Presentation: 会津(第33巻,増刊2号,pp. 57-58)
  • Year and Date: 20130927-28
• [Presentation] Quantitative Visualization of an Underexpanded Sonic Jet Issued from a Cylindrical Nozzle Using Rainbow Schlieren Deflectometry (2013)
  • Author(s): Nakajima, R., Konishi, K., Oka, T., Ono, D., and Miyazato, Y.
  • Organizer: ISAIF11
  • Place of Presentation: Shenzhen, China(CD-ROM)
  • Year and Date: 20130506-11
• [Presentation] Experimental Study of Centerline Static Pressure Measurements in Compressible Gas Flows Using Through-Tube System (2013)
  • Author(s): Oka, T., Jiang, S., Isozumi, R., Ono, D., and Miyazato, Y.
  • Organizer: ISAIF11
  • Place of Presentation: Shenzhen, China(CD-ROM)
  • Year and Date: 20130506-11
• [Presentation] Quantitative Visualization of Underexpanded Sonic Jet Using Mach-Zehnder Interferometry (2013)
  • Author(s): Oyama, Y., Oike, A., Shimomiya, K., Hidaka, Y., Ono, D., and Miyazato, Y.
  • Organizer: ISAIF11
  • Place of Presentation: Shenzhen, China(CD-ROM)
  • Year and Date: 20130506-11
• [Presentation] Mach-Zehnder Interferogram Analysis of Axisymmetric Underexpanded Sonic Jet using Fourier--Hankel Methods (2013)
  • Author(s): Shimomiya, K., Ono, D., and Miyazato, Y.
  • Organizer: AIAA Paper
  • Place of Presentation: Grapevine, Texax, USA(CD-ROM)
  • Year and Date: 20130107-10
• [Presentation] レインボーシュリーレン法を用いた不足膨張音速噴流の可視化 (2012)
  • Author(s): 小西敬三,中島涼太,小野大輔,宮里義昭
  • Organizer: 可視化情報
  • Place of Presentation: 姫路(第32巻,増刊2号, pp. 31-32)
  • Year and Date: 20121004-05
• [Presentation] マッハ・ツェンダー干渉法を用いた不足膨張音速噴流の密度場の可視化 (2012)
  • Author(s): 下宮圭太郎,小野大輔,宮里義昭
  • Organizer: 可視化情報
  • Place of Presentation: 姫路(第32巻,増刊2号, pp. 237-238)
  • Year and Date: 20121004-05