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문장혁(J.-H. Moon),김윤제(Youn J. Kim),한전건(J.-G. Han) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.4
The characteristics plasma flow of an atmospheric plasma torch used for thermal plasma processing is studied. In<br/> general, it is produced by the arc-gas interactions between a cathode tip and an anode nozzle. The performance of nontransferred<br/> plasma torch is significantly dependent on jet flow characteristics out of the nozzle. In this work, the<br/> distribution of gas flow that goes out to the atmosphere through a plenum chamber and nozzle is analyzed to evaluate<br/> the performance of atmospheric plasma torch. Numerical analysis is carried out with various angles of an inlet flow<br/> which can create different swirl flow fields. Moreover, the size of plasma plume is experimentally depicted.