摘要
与普通爆轰不同，粉尘薄膜爆轰波前氧化剂与燃料处于分离状态．由于激波作用下壁面燃料的注入才于壁面附近形成燃烧的粉尘云，燃烧释放的热使激波自持形成粉尘薄膜爆轰。本文在长2、8m，横截面20mm×20mm的方型水平激波管中对此类爆轰进行了实验研究．并根据作者建立的模型对其二维结构进行了数值模拟。
For a dust film detonation different from general detonations, oxidizer is separated from fuel.before its shock front and behind it, a burning dust cloud near the wall is induced due to dust entrainment by the action of shock fronts. The combustion heat of the burning cloud makes the shock wave self - sustaining, formig a duSt film detonation.In this paper, the experimental studies are conducted in a horizontal shock tube with the Square cross section 20mm × 20mm and the numerical simulations on its two dimensional structure are performed based on the model developed by authors.
基金
国家自然科学基金
中国工程物理研究院基金
