【摘要】 自由空间开缝钝体冷态速度场研究史学锋，马晓茜，罗萌，钱壬章（华中理工大学动力系武汉４３００７４）关键词：开缝钝体，速度，回流区１引言许多研究结果表明，煤粉着火、稳燃和效率等问题与炉内空气动力场的合理组织有着极其密切的关系ｌ＇－＇］。就煤粉着火过程而言...更多还原

【Abstract】 This paper analyses cold state velocity field with slitting bluff body in open space and discusses influencing factors upon length and reflux rate of recirculation region such as characteristics of center and main jets, slit width, and primary air. Very important conclusion is got that slit width has a little influence on reflux rate of the recirculation region in some range. This value is very useful for hot state optimal investigation of slitting bluff body.更多还原