工程科学学报2017，Vol.39Issue(3)：335-341,7.DOI:10.13374/j.issn2095-9389.2017.03.003
爆轰波三波点擦除烟迹表面积碳机制
Precise mechanism of triple point passage removing soot on soot-coated surface
摘要
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 experi-mental results. The soot can be removed when bond energy is bigger than adsorption energy between the soot and the foil or glass sur-face. 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.关键词
螺旋爆轰/烟膜/烟熏玻璃/三波点/胞格结构Key words
spinning detonation/smoked foils/smoked end-on glass/triple point/cellular structure分类
矿业与冶金引用本文复制引用
赵焕娟,John H. S. Lee,张英华,严屹然..爆轰波三波点擦除烟迹表面积碳机制[J].工程科学学报,2017,39(3):335-341,7.基金项目
国家自然科学基金资助项目(E041003) （E041003）
中央高校基本科研业务费专项资金资助项目(FRF-TP-15-105A1) （FRF-TP-15-105A1）
中国博士后科学基金资助项目(2015M580049) （2015M580049）
