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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。
Unlike ordinary detonation, dust film detonation wavefront oxidant and fuel are in a state of separation. Due to the shock wave wall fuel injection only in the wall near the formation of dust clouds of combustion, the heat released by the combustion shock self-sustaining to form a dust film detonation. In this paper, an experimental study of such detonation was conducted in a square horizontal shock tube with a length of 2,8 m and a cross section of 20 mm × 20 mm. The two-dimensional structure of the model was numerically simulated according to the model established by the author.