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Study of Choking Phenomena of Compressible Flow in Extremely Small Nozzles and its Application to Extremely small and Critical Mass Flow Meters

Research Project

Project/Area Number 20560167
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Fluid engineering
Research InstitutionThe University of Kitakyushu

Principal Investigator

KAZUYASU Matsuo  The University of Kitakyushu, 国際環境工学部, 教授 (30037759)

Co-Investigator(Kenkyū-buntansha) MIYAZATO YOSHIAKI  北九州市立大学, 国際環境工学部, 教授 (30253537)
Project Period (FY) 2008 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2008: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsチョーク現象 / 圧縮流れ / 臨界流量計 / 極小ノズル / 境界層 / 超音速流れ
Research Abstract

The choking phenomena of extremely small sonic or supersonic nozzles have been investigated using four nozzles with the same diameter but different boundary layer thickness at the exit of the nozzle. The effects of the boundary layer thickness at the nozzle exit to the critical pressure ratio across the nozzle when the flow is just choked have been clarified and the discharge coefficients of different shape of nozzles at the critical conditions have been obtained.

Report

(4 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (14 results)

All 2010 2009 2008

All Journal Article (9 results) (of which Peer Reviewed: 9 results) Presentation (5 results)

  • [Journal Article] 先細ノズル流れのチョークに関する研究(第3報,チョーク流れの詳細構造)2010

    • Author(s)
      久保和範, 宮里義昭, 松尾一泰
    • Journal Title

      日本機械学会論文集 B編,76巻,767号

      Pages: 1048-1053

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Study of Choked Flow through a Convergent Nozzle2010

    • Author(s)
      Kazunori Kubo
    • Journal Title

      Journal of Thermal Science

      Volume: 19 Pages: 193-197

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 先細ノズル流れのチョークに関する研究(第2報, チョーク流れの詳細構造)2010

    • Author(s)
      久保和範
    • Journal Title

      日本機械学会論文集

      Volume: 76 Pages: 1048-1053

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 先細ノズル流れのチョークに関する研究(第2報,実験値と理論値との比較)2009

    • Author(s)
      久保和範, 宮里義昭, 安信強, 松尾一泰
    • Journal Title

      日本機械学会論文集 B編,75巻,754号

      Pages: 1253-1258

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] 先細ノズル流れのチョークに関する研究(第1報,チョーク圧力比とチョーク流量に関する実験)2009

    • Author(s)
      宮里義昭, 久保和範, 近藤陽介, 松尾一泰
    • Journal Title

      日本機械学会論文集 B編,75巻,752号

      Pages: 724-729

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Study of Choked Flow through a Convergent Nozzle2009

    • Author(s)
      Kazunori Kubo
    • Journal Title

      Proceedings of the 9^<th> International Symposium on Experimental and Computational Aerothermodynamics of Internal Flows (CD-ROM)

      Pages: 1-4

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 先細ノズル流れのチョークに関する研究(第1報,チョーク圧力比とチョーク流量に関する実験)2009

    • Author(s)
      宮里義昭
    • Journal Title

      日本機械学会論文集 75

      Pages: 724-729

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 先細ノズル流れのチョークに関する研究(第2報,実験値と理論値との比較)2009

    • Author(s)
      久保和範
    • Journal Title

      日本機械学会論文集 75

      Pages: 1253-1258

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] An Experimental Study of Choking in a Convergent Nozzle Flow2008

    • Author(s)
      Kazunori Kubo
    • Journal Title

      Proceedings of the 7^<th> JSME-KSME Thermal and Fluid Engineering Conference (CD-ROM)

      Pages: 1-4

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] 境界層を伴う管内流れのチョークに関する実験的研究2010

    • Author(s)
      久保和範, 宮里義昭, 松尾一泰
    • Organizer
      日本機械学会九州支部第63期総会講演会
    • Related Report
      2010 Final Research Report
  • [Presentation] An Experimental Study of Choked Flow through a Convergent Nozzle with Viscosity Effects2010

    • Author(s)
      Kazunori Kubo
    • Organizer
      The 3^<rd> Asian Joint Workshop on Thermo-physics and Fluid Science
    • Place of Presentation
      Matsue, Japan
    • Related Report
      2010 Annual Research Report
  • [Presentation] 境界層を伴う管内流れのチョークに関する実験的研究2010

    • Author(s)
      久保和範
    • Organizer
      日本機械学会九州支部第63期総会講演会
    • Place of Presentation
      熊本大学(熊本県熊本市)
    • Related Report
      2009 Annual Research Report
  • [Presentation] 先細ノズルにおけるチョーク流れの三次元構造に関する実験的研究2009

    • Author(s)
      久保和範
    • Organizer
      日本機械学会中国四国支部第47期総会講演会
    • Place of Presentation
      山口大学工学部(山口県宇部市)
    • Year and Date
      2009-03-06
    • Related Report
      2008 Annual Research Report
  • [Presentation] 先細ノズルにおけるチョーク流れの三次元構造に関する実験的研究2009

    • Author(s)
      久保和範, 宮里義昭, 松尾一泰
    • Organizer
      日本機械学会中国四国支部第47期総会講演会
    • Related Report
      2010 Final Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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