DEVELOPMENTAL SCIENTIFIC RESEARCH ON CERAMIC CONTROLLABLE-STRUT FOR SUPERSONIC COMBUSTION

超声燃烧陶瓷可控支柱的发展科学研究

• 批准号: 05555258
• 负责人: NIIOKA Takashi
• 金额: $ 4.16万
• 依托单位: TOHOKU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-05555258/
• 关键词: scramjet; supersonic combustion; ceramics; strut; combustion control; flame holding; 乱流燃焼; 保炎器; 可変機構; 消炎; 水素燃焼; 耐熱性能

A newly devised strut made on an experimental bais was proposed for the ramjet or scramjet engine and its combustion experiments were carried out in supersonic airflow of Mach number 1.5. This strut model is composed of two parts divided streamwise and a part of the strut can be changed, for example, in response to airflow condition. Therefore, it is expected that the flame-holdindg is always possible in any condition of fuel and air. The intervening space between two parts of this controllable strut can be changed up to 60 mm and also the moving speed of the rear strut can be variable. It was found that the flame-holding characteristics were improved, but that they depended on the moving speed beacause of its unstesdiness of the flow. The strut was made of ceramics, whose machinability was so good, and had no problem even after many times of ten-second experiment.

提出了一种在实验平台上制作的新设计的支柱，用于冲压喷气发动机或超燃冲压发动机，并在马赫数1.5的超音速气流中进行了燃烧实验。该支柱模型由沿流向划分的两部分组成，并且支柱的一部分可以改变，例如响应气流条件。因此，期望在任何燃料和空气条件下始终可以保持火焰。该可控支柱的两部分之间的间隔可以改变至60毫米，并且后支柱的移动速度可以是可变的。结果发现，火焰保持特性得到改善，但由于流动的不稳定，火焰保持特性取决于移动速度。支柱采用陶瓷材质，机械加工性非常好，多次十秒实验都没有问题。

项目成果

M.Uchiumi,H.Kobayashi,S.Hasegawa,T.Niioka: "Flame-Holding Mechanism of a Newly Devised Strut for Scramjet Engine" Transactions of the Japan Society for Aeronautical and Space Sciences. (in press) (1995)

M.Uchiumi、H.Kobayashi、S.Hasekawa、T.Niioka：“超燃冲压发动机新设计支柱的火焰保持机构”日本航空航天学会会刊。

M.Uchiumi, H.Kobayashi, S.Hasegawa and T.Niioka: "Flame-Holding Mechanism of a Newly Devised Strut for Scramjet Engine" Transactions of the Japan Society for Aeronautical and Space Sci.in press.

M.Uchiumi、H.Kobayashi、S.Hasekawa 和 T.Niioka：“新设计的超燃冲压发动机支柱的火焰保持机构”，日本航空航天学会会刊，出版。

T.Niioka,K.Terada,H.Kobayashi and S.Hasegawa: "Flame Stabilization Characteristics of Strut Divided into Two Parts in Supersonic Airflow" Propulsion and Power,AIAA. (発表予定). (1994)

T. Niioka、K. Terada、H. Kobayashi 和 S. Hasekawa：“超音速气流中支柱的火焰稳定特性”推进与动力，AIAA（即将发表）。

T.Niioka,K.Terada,H.Kobayashi and S.Hasegawa: "Flame Stabilization Characteristics of Strut Divided into Two Parts in Supersonic Airflow" Journal of Propulsion and Power. 11. 112-116 (1995)

T.Niioka、K.Terada、H.Kobayashi 和 S.Hasekawa：“超音速气流中分为两部分的支柱的火焰稳定特性”推进与动力杂志。

M.Uchimumi, H.Kobayashi,S.Hasegawa and T.Niioka: "Experiments on the Flame-Holding Mechanism of a Newly Devised Strut in Supersonic Airflow" IUTAM Symposium on Supersonic Combustion. (submitted).

M.Uchimumi、H.Kobayashi、S.Hasekawa 和 T.Niioka：“超音速气流中新设计支柱的火焰保持机制实验”IUTAM 超音速燃烧研讨会。