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Generation and Collection of Droplets under microgravity

Research Project

Project/Area Number 10450369
Research Category

Grant-in-Aid for Scientific Research (B).

Allocation TypeSingle-year Grants
Section一般
Research Field Aerospace engineering
Research InstitutionHOKKAIDO UNIVERSITY

Principal Investigator

KUDO Isao  Hokkaido Univ., Grad. School of Eng., Prof., 大学院・工学研究科, 教授 (10281784)

Co-Investigator(Kenkyū-buntansha) TOTANI Tsuyoshi  Hokkaido Univ., Grad. School of Eng., Inst., 大学院・工学研究科, 助手 (00301937)
NAGATA Harunori  Hokkaido Univ., Grad. School of Eng., Asso. Prof., 大学院・工学研究科, 助教授 (40281787)
Project Period (FY) 1998 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥12,700,000 (Direct Cost: ¥12,700,000)
Fiscal Year 2000: ¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 1999: ¥4,700,000 (Direct Cost: ¥4,700,000)
Fiscal Year 1998: ¥5,000,000 (Direct Cost: ¥5,000,000)
KeywordsDroplet / Generation of Droplet / Collection of Droplet / Droplet Radiator / Droplet Collector / Droplet Generator / Silicon Oil / 液滴射出 / 微小重力 / 濡れ
Research Abstract

Performances of a droplet generator and a droplet collector in Liquid Droplet Radiator under microgravity were investigated. As a result, it is concluded that
(1) Droplet generator can produce the uniform droplet stream whose diameter and spacing is uniform under microgravity,
(2) Splashes don't occur at the surface of the droplet collector in case that the uniform droplet stream that consists of droplets of 200 [μm] diameter collides against,
(3) Splashes occur in case that the non-uniform droplet stream collides against and the uniform droplet stream that consists of droplets larger than 400 [μm],
(4) Centrifugal collector is effective to carry the working fluid that is collected,
(5) Liquid film that is a few millimeter thick is effective to prevent droplets of 400 [μm] diameter from splashing,
(6) There is small dependency between splashes and angles formed where a droplet stream collides against the surface on the droplet collector.

Report

(4 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • Research Products

    (25 results)

All Other

All Publications (25 results)

  • [Publications] Tsuyoshi Totani: "Performance of Liquid Droplet Radiator Elements (collector and gear pump) under Microgravity"J.Jpn.Soc.Microgravity Appl.. Vol.17 Supplement. 18-19 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Tsuyoshi Totani: "Performance of Generator and Collector in Liquid Droplet Radiator Under Microgravity"Drop Tower Days 2000 in BREMEN. 28-30 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 戸谷剛: "液滴ラジエータにおける液滴生成部および液滴回収部の微小重力下での性能試験"第9回短時間無重力利用に関する講演会抄録. 5-6 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masahiro Itami: "Performance Test of Liquid Droplet Radiator Elements Under Microgravity"J.Jpn.Soc.Microgravity Appl.. Vol.16 Supplement. 114-115 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] T.Totani: "Test Plan of a Liquid Droplet Radiator using Short-duration Microgravity Facility"Drop Tower Days 1998 in Hokkaido. 175-177 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masahiro Itami: "Performance Evaluation of a Liquid Droplet Radiator Under Microgravity"J.Jpn.Soc.Microgravity Appl.. Vol.15 Supplement. 38-39 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Tsuyoshi TOTANI, Shigeru YABUTA, Harunori NAGATA, Isao KUDO, Akira IWASAKI and Shunsuke HOSOKAWA: "Performance of Liquid Droplet Radiator Elements (collector and gear pump) under Microgravity"J.Jpn. Soc. Microgravity Appl.. Vol.17, Supplement. 18-19 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Tsuyoshi TOTANI, Masahiro Itami, Harunori NAGATA, Isao KUDO, Akira IWASAKI and Shunsuke HOSOKAWA: "Performance of Droplet Generator and Droplet Collector in Liquid Droplet Radiator under Microgravity"Drop Tower Days 2000 in Bremen Extended Abstracts. 28-30 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Tsuyoshi TOTANI, Masahiro Itami, Takafumi Sasaki, Harunori NAGATA, Isao KUDO, Akira IWASAKI and Shunsuke HOSOKAWA: "Performance Test of Droplet Generator and Droplet Collector in Liquid Droplet Radiator under Microgravity (in Japanese)"Proceeding of The 9th Symposium on Utilizations of Short-Duration Microgravity Environment. 5-6 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masahiro Itami, Tsuyoshi TOTANI, Harunori NAGATA, Isao KUDO, Akira IWASAKI and Shunsuke HOSOKAWA: "Performance Test of Liquid Droplet Radiator Elements Under Microgravity"J.Jpn. Soc. Microgravity Appl.. Vol.16, Supplement. 114-115 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Tsuyoshi TOTANI, Masahiro Itami, Harunori NAGATA, Isao KUDO, Akita IWASAKI and Shunsuke HOSOKAWA: "Test Plan of a Liquid Droplet Radiator using Short-duration Microgravity Facility"Drop Tower Days 1998 in Hokkaido Extended Abstracts. 175-177 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masahiro Itami, Tsuyoshi TOTANI, Harunori NAGATA, Isao KUDO, Akira IWASAKI and Shunsuke HOSOKAWA: "Performance Test of Liquid Droplet Radiator Elements Under Microgravity"J.Jpn. Soc. Microgravity Appl.. Vol.15, Supplement. 38-39 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Tsuyoshi Totani: "液滴ラジエータ要素(液滴回収器、ギアポンプ)の微小重力下での性能"J.Jpn.Soc.Microgravity Appl.. Vol.17 Supplement. 18-19 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Tsuyoshi Totani: "Performance of Generator and Collector in Liquid Droplet Radiator Under Microgravity"Drop Tower Days 2000 in BREMEN. 28-31 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 戸谷剛: "液滴ラジエータにおける液滴生成部および液滴回収部の微小重力下での性能試験"第9回短時間無重力利用に関する講演会抄録. 5-6 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Masahiro Itami: "Performance Test of Liquid Droplet Radiator Elements Under Microgravity"J.Jpn.Soc.Microgravity Appl.. Vol.16 Supplement. 114-115 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] T.Totani: "Test Plan of a Liquid Droplet Radiator using Short-duration Microgravity Facility"Drop Tower Days 1998 in Hokkaido. 175-177 (1998)

    • Related Report
      2000 Annual Research Report
  • [Publications] Masahiro Itami : "Performance Evaluation of a Liquid Droplet Radiator Under Microgravity"J.Jpn.Soc.Microgravity Appl.. Vol.15 Supplement. 38-39 (1998)

    • Related Report
      2000 Annual Research Report
  • [Publications] Masahiro Itami: "Performance Test of Liquid Droplet Radiator Elements Under Microgravity"J. Jpn. Soc. Microgravity Appl.. Vol.16 Supplement. 114-115 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 戸谷 剛: "液滴ラジエータにおける液滴生成部および液滴回収部の微少重力下での性能試験"第9回短時間無重力利用に関する講演会抄録. (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] Tsuyoshi Totani: "Performance of Generator and Collector in Liquid Droplet Radiator Under Microgravity"Drop Tower Days 2000 in BREMEN. (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] T. Totani: "Test Plan of a Liquid Droplet Radiator using Short-duration Microgravity Facility"Drop Tower Days 1998 in Hokkaido. 175-177 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] Masahiro Itami: "Performance Evaluation of a Liquid Droplet Radiator Under Microgravity"J. Jpn. Soc. Microgravity Appl.. Vol.15 Supplement. 38-39 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] T.Totani: "Test Plan of a Liquid Droplet Radiator using Short-duration Microgravity Facility" Drop Tower Days 1998 in Hokkaido. 175-177 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 伊丹雅洋: "微小重力における液滴ラジエータの評価" 日本マイクログラビティ応用学会誌. 15,4,Sup.38-39 (1998)

    • Related Report
      1998 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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