Precise mechanism of triple point passage removing soot on soot-coated surface

ZHAO Huan-juan; John H. S. LEE; ZHANG Ying-hua; YAN Yi-ran

doi:10.13374/j.issn2095-9389.2017.03.003

Volume 39 Issue 3

Mar. 2017

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Article Navigation > Chinese Journal of Engineering > 2017 > 39(3): 335-341

ZHAO Huan-juan, John H. S. LEE, ZHANG Ying-hua, YAN Yi-ran. Precise mechanism of triple point passage removing soot on soot-coated surface[J]. Chinese Journal of Engineering, 2017, 39(3): 335-341. doi: 10.13374/j.issn2095-9389.2017.03.003

Citation:

ZHAO Huan-juan, John H. S. LEE, ZHANG Ying-hua, YAN Yi-ran. Precise mechanism of triple point passage removing soot on soot-coated surface[J]. Chinese Journal of Engineering, 2017, 39(3): 335-341. doi: 10.13374/j.issn2095-9389.2017.03.003

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Precise mechanism of triple point passage removing soot on soot-coated surface

doi: 10.13374/j.issn2095-9389.2017.03.003

1) School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China
2) Mechanical Engineering Department, McGill University, Montreal, Quebec, Canada H3A 2K6

Received Date: 2016-05-16

Abstract

Abstract

To understand the precise mechanism by what the soot is removed when the triple point passed over the smoked inner wall foil or smoked end-on glass and promote the research on spinning detonation structure, smoked end-on glasses and inner wall smoked foils were established to record the trajectories of triple-shock Mach intersections of spinning detonation. Detonation records of unstable, a little stable and very stable premixed mixtures were obtained in wall foils and end-on glasses. Smoked end-on glass of 2H₂ + O₂ + 3Ar gave clear records. Sing-head spinning detonation records of 2H₂ + O₂ + 3Ar indicates that the internal structure of the spinning detonation is not stable while the inner wall results are similar. The cause why soot can be adsorbed on foils and glasses is one factor. Another factor is that reaction characteristics performance of different mixtures should be considered according to above experimental results. The soot can be removed when bond energy is bigger than adsorption energy between the soot and the foil or glass surface. What's more, the carbon molecules particles in detonation front reaction may lead to carbon accumulation and affect the records. In another hand, the strength of reflected shock wave may affect the clarity of the records. Finally, the precise mechanism is affected by characteristics of mixtures. Using appropriate surface roughness and soot particle size according to mixtures characteristics can give satisfying detonation structure records.
- spinning detonation,
- smoked foils,
- smoked end-on glass,
- triple point,
- cellular structure

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References(18)

References

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