Experimental investigation of nozzle exit reflector effect on supersonic jet

Y. H. Kweon, Y. Miyazato, Toshiyuki Aoki, H. D. Kim, T. Setoguchi

研究成果: ジャーナルへの寄稿記事

13 引用 (Scopus)

抄録

The present study describes an experimental work to investigate the effect of a nozzle exit reflector on a supersonic jet that is discharged from a convergent-divergent nozzle with a design Mach number of 2.0. An annular reflector is installed at the nozzle exit and its diameter is varied. A high-quality spark schlieren optical system is used to visualize detailed jet structures with and without the reflector. Impact pressure measurement using a pitot probe is also carried out to quantify the reflector's effect on the supersonic jet which is in the range from an over-expanded to a moderately under-expanded state. The results obtained show that for over-expanded jets, the reflector substantially increases the jet spreading rate and reduces the supersonic length of the jet, compared with moderately under-expanded jets. The reflector's effect appears more significant in imperfectly expanded jets that have strong shock cell structures, but is negligible in correctly expanded jet.

元の言語英語
ページ(範囲)229-239
ページ数11
ジャーナルShock Waves
15
発行部数3-4
DOI
出版物ステータス出版済み - 7 1 2006

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nozzles
reflectors
Nozzles
convergent-divergent nozzles
impact loads
pressure measurement
Pressure measurement
sparks
Electric sparks
Mach number
Optical systems
shock
probes
cells

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Physics and Astronomy(all)

これを引用

Experimental investigation of nozzle exit reflector effect on supersonic jet. / Kweon, Y. H.; Miyazato, Y.; Aoki, Toshiyuki; Kim, H. D.; Setoguchi, T.

:: Shock Waves, 巻 15, 番号 3-4, 01.07.2006, p. 229-239.

研究成果: ジャーナルへの寄稿記事

Kweon, YH, Miyazato, Y, Aoki, T, Kim, HD & Setoguchi, T 2006, 'Experimental investigation of nozzle exit reflector effect on supersonic jet', Shock Waves, 巻. 15, 番号 3-4, pp. 229-239. https://doi.org/10.1007/s00193-006-0021-6
Kweon, Y. H. ; Miyazato, Y. ; Aoki, Toshiyuki ; Kim, H. D. ; Setoguchi, T. / Experimental investigation of nozzle exit reflector effect on supersonic jet. :: Shock Waves. 2006 ; 巻 15, 番号 3-4. pp. 229-239.
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