Generation and Collection of Droplets under microgravity

微重力下液滴的产生和收集

• 批准号: 10450369
• 负责人: KUDO Isao
• 金额: $ 8.13万
• 依托单位: HOKKAIDO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B).
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-10450369/
• 关键词: Droplet; Generation of Droplet; Collection of Droplet; Droplet Radiator; Droplet Collector; Droplet Generator; Silicon Oil; 液滴射出; 微小重力; 濡れ

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.

研究了微重力下液滴发生器和液滴收集器的性能，结果表明：(1)微重力下液滴发生器能够产生直径和间距均匀的均匀液滴流；(2)飞溅。当由直径为 200 [μm] 的液滴组成的均匀液滴流碰撞到液滴收集器表面时，不会发生这种情况，(3) 飞溅发生在在非均匀液滴流与由大于400[μm]的液滴组成的均匀液滴流碰撞的情况下，(4)离心收集器能够有效地携带所收集的工作流体，(5)液膜是几毫米厚可有效防止直径为 400 [μm] 的液滴飞溅，(6) 飞溅与液滴流与液滴表面碰撞时形成的角度之间的依赖性很小集电极。

项目成果

Masahiro Itami: "Performance Evaluation of a Liquid Droplet Radiator Under Microgravity"J. Jpn. Soc. Microgravity Appl.. Vol.15 Supplement. 38-39 (1998)

Masahiro Itami：“微重力下液滴散热器的性能评估”J。

Tsuyoshi Totani: "Performance of Generator and Collector in Liquid Droplet Radiator Under Microgravity"Drop Tower Days 2000 in BREMEN. (2000)

Tsuyoshi Totani：“微重力下液滴散热器中发生器和收集器的性能”2000 年不莱梅落塔日。

Tsuyoshi Totani: "Performance of Generator and Collector in Liquid Droplet Radiator Under Microgravity"Drop Tower Days 2000 in BREMEN. 28-31 (2000)

Tsuyoshi Totani：“微重力下液滴散热器中发生器和收集器的性能”2000 年不莱梅落塔日。

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)

Tsuyoshi Totani：“微重力下液滴散热器元件（收集器和齿轮泵）的性能”J.Jpn.Soc.Microgravity Appl.. Vol.17 补充。

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)

Tsuyoshi Totani：“微重力下液滴散热器元件（液滴收集器、齿轮泵）的性能”J.Jpn.Soc.Microgravity Appl.. Vol.17 Supplement（2000 年）。