Experimental investigation of flame length of buoyancy-controlled jet flames from inclined rectangular nozzles

被引:9
作者
Tao, Changfa [1 ,2 ]
Shen, Yan [1 ]
Ren, Jie [1 ]
Zhi, Youran [1 ,3 ]
Zong, Ruowen [1 ]
机构
[1] Univ Sci & Technol China, State Key Lab Fire Sci, Hefei, Anhui, Peoples R China
[2] Hefei Univ Technol, Sch Automot & Transportat Engn, Hefei, Anhui, Peoples R China
[3] NanJing Inst Technol, Sch Mech Engn, Nanjing, Jiangsu, Peoples R China
基金
中国国家自然科学基金;
关键词
Flame length; inclined angle; rectangular nozzles; jet flames; DIFFUSION FLAMES; AIR ENTRAINMENT; EMISSION CHARACTERISTICS; HEIGHT; PRESSURE;
D O I
10.1080/08916152.2018.1505785
中图分类号
O414.1 [热力学];
学科分类号
摘要
In this paper, the buoyancy-controlled jet flames from the inclined rectangular nozzles with different aspect ratios have been investigated. The length-to-width aspect ratios of nozzles are 1, 2.25, 4, 9, and 16 with the same cross-sectional area. The inclined angles of the nozzle to the horizontal direction are 0 degrees, 30 degrees, 60 degrees, and 90 degrees. The value of flame length changes at the same inclined angle for different aspect ratios. A correlation has been developed to calculate the flame length of jet flame for different inclined nozzle and aspect ratios with an arbitrary angle.
引用
收藏
页码:239 / 250
页数:12
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