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http://dx.doi.org/10.15231/jksc.2017.22.1.032

The Response of the Burke-Schumann Flame to External Excitation with Flame Shape and Heat Release  

Kim, Taesung (Department of Mechanical and Aerospace Engineering, Seoul National University)
Ahn, Myunggeun (Department of Mechanical and Aerospace Engineering, Seoul National University)
Hwang, Jeongjae (Department of Eco-Machinery System, Korea Institute of Machinery and Materials)
Jeong, Chanyeong (Department of Mechanical and Aerospace Engineering, Seoul National University)
Kwon, Oh Chae (School of Mechanical Engineering, Sungkyunkwan University)
Yoon, Youngbin (Department of Mechanical and Aerospace Engineering and the Institute of Advanced Aerospace Technology, Seoul National University)
Publication Information
Journal of the Korean Society of Combustion / v.22, no.1, 2017 , pp. 32-38 More about this Journal
Abstract
This paper shows the dynamics of the Burke-Schumann flame. To show flame dynamics, this paper measures the flame surface and heat release rate. The flame shape is divided into three types with forcing frequencies. When the forcing frequency is lower than 120 Hz, the upper region of flame is cut. The flame is stagnant with 220 to 280 Hz forcing frequencies. The rest conditions of forcing frequencies make the connected wave shape of flame. The heat release rate is expressed by the flame transfer function. The gain of the flame transfer function is similar with the oscillation magnitude of the flame area except for flame cutting conditions. The flame is cut because the fuel is not supplied to upper flame region.
Keywords
Burke-Schumann flame; Flame dynamics; Flame transfer function; Flame shape;
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Times Cited By KSCI : 1  (Citation Analysis)
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