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http://dx.doi.org/10.15231/jksc.2017.22.2.019

A Study on Response Characteristics of Jet-diffusion Flame and Premixed Flame with Various Velocity Perturbations  

Ahn, Myunggeun (Department of Mechanical and Aerospace Engineering, Seoul National University)
Kim, Taesung (Department of Mechanical and Aerospace Engineering, Seoul National University)
Kim, Heuydong (School of Mechanical Engineering, Andong National University)
Yoon, Youngbin (Department of Mechanical and Aerospace Engineering, Seoul National University)
Publication Information
Journal of the Korean Society of Combustion / v.22, no.2, 2017 , pp. 19-26 More about this Journal
Abstract
An experimental study investigates the flame response characteristics of jet-diffusion flame and premixed flame. The experiment was conducted while varying the amplitude. Flame lengths were quantified for OH chemiluminescence measurement and compared with the result of the flame transfer function. Flame length and flame velocity perturbation were normalized and compared with the result of the flame transfer function. The comparison results appear that velocity perturbation and flame length oscillation of premixed flame show linear behaviors on the other hand jet-diffusion flame, amplitudes are more thant 0.20, shows nonlinear behaviors of flame velocity perturbation and flame length oscillation.
Keywords
Flame Transfer Function (FTF); Flame response characteristics; Jet-diffusion flame; Premixed flame; Flame length;
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