[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.6108/KSPE.2014.18.4.043

A Schlieren-photographic Visualization of the Methane/Air Premixed Flame Propagating inside a Rectangular Tube Locally-perturbed by an Ultrasonic Standing Wave

Kim, Min Sung (Department of Mechanical Engineering, Graduate School, Pukyong National University)
Kim, Jeong Soo (Department of Mechanical Engineering, Pukyong National University)
Hwang, Yeong Yeun (Department of Control and Instrumentation Engineering, Pukyong National University)

Publication Information

Journal of the Korean Society of Propulsion Engineers / v.18, no.4, 2014 , pp. 43-49 More about this Journal

Abstract

This experimental study has been conducted to scrutinize the effects of an ultrasonic standing wave (USW) on the propagating velocity and structure of methane/air premixed flame. Propagating flame was caught by high-speed Schlieren photography, and the variation of flame-behavior was analyzed in detail. It is revealed that horizontal splitting in burnt zone is resulted by the USW, and the flame propagation velocity is augmented due to the strengthened chemical reaction. Evolutionary feature of the flame perturbed by USW, maintaining a pseudo-symmetry of top and bottom flame-front about the propagation axis tends to be free from buoyancy effect.

Keywords

Methane/Air; Ultrasonic Standing Wave; Premixed Flame; Rectangular Tube; Schlieren Method;

Citations & Related Records

Times Cited By KSCI : 4 (Citation Analysis)

Reference
Cited By KSCI

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