Browse > Article

A NUMERICAL STUDY ON JET IMPINGEMENT OF PULSED PLASMA DISCHARGE ON A FLAT PLATE  

Kim, K. (금오공과대학교 기계공학부)
Kwak, H.S. (금오공과대학교 기계공학부)
Park, J.Y. (금오공과대학교 기계공학부)
Publication Information
Journal of computational fluids engineering / v.14, no.1, 2009 , pp. 70-77 More about this Journal
Abstract
In this study, time-dependent numerical analysis was carried out to investigate the plasma jet impingement on a flat plate, and a compressible form of two-dimensional inviscid gas dynamics equations were solved using the flux corrected transport algorithm. The mathematical modeling of Joule heating in the polycarbonate capillary bore and the mass ablation from the bore wall was incorporated in the numerical analysis and the series of computation was performed for three cases depending on the distance of the opposing plate from the capillary exit. The computational results reveal that the presence of the opposing plate does not affect the flow conditions inside the capillary when compared to the case of open-air plasma discharge. In the exterior region, the flow structure shows the typical supersonic underexpanded jet which consists of the strong Mach disk in front of the opposing plate and the barrel shock at the side of the jet. It is found that the shock evolution becomes more quasi-steady when the plate distance decreases. Also, the effects of the distance between the capillary bore exit and the opposing plate on the flow conditions along the opposing plate are investigated and the pressure variation on the plate shows more complicated interaction between the plasma discharge and the opposing plate when the location of plate becomes closer to the capillary exit.
Keywords
Electrothermal Gun; Plasma Discharge; Supersonic Underexpanded Jet; Jet Impingement;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 1999, Nusca, M.J., White, K.J., Williams, A.W., Landsberg, A.M., Young, T.R. and Lind, C.A., "Computational and Experimental Investigations of Open-Air Plasma Discharges," AIAA Paper 99-0865
2 2008, Pekker, L., "A Zero Dimensional Time-Dependent Model of High Pressure Ablative Capillary Discharge," AIAA Paper 2008-3891
3 1997, Peterson, D.R., "Design and Operation of the Electrogun, an Electrothermal Gun for Producing Metal and Carbon Plasma Jets," IEEE Trans. Magn., Vol.33, pp.373-378   DOI   ScienceOn
4 2008, Kim, K. and Peterson, D.R., "A Low Aspect Ratio Electrothermal Gun for Metal Plasma Vapor Discharge and Ceramic Nanopowder Production," J. Mech. Sci. Technol., Vol.22, pp.1408-1416   DOI   ScienceOn
5 1992, Powell, J.D. and Zielinski, A.E., "Theory and Experiment for an Ablating-Capillary Discharge and Applications to Electrothermal-Chemical Guns," BRL-TR-3355, U.S. Army Ballistic Research Laboratory, Aberdeen Proving Ground
6 1997, White, K.J., Katulka, G.L., Khong, T. and Nekula, K., "Plasma Characterization for Electrothermal-Chemical Gun Applications," ARL-TR-1491, U.S. Army Research Laboratory, Aberdeen Proving Ground
7 2001, Zaghloul, M.F., Bourham, M.A. and Doster, J.M., "Semi-Analytical Modelling and Simulation of the Evolution and Flow of Ohmically-Heated Non-Ideal Plasmas in Electrothermal Guns," J Phys. D: Appl. Phys., Vol.34, pp.772-786   DOI   ScienceOn
8 1995, Batteh, J., Powell, J., Sink, D. and Thornhill, L., "A Methodology for Computing Thermodynamic and Transport Properties of Plasma Mixtures in ETC Injectors," IEEE Trans. Magn., Vol.31, pp.388-393   DOI   ScienceOn
9 1993, Boris, J.P., Landsberg, A.M., Oran, E.S. and Gardner, J.H., "LCPFCT - Flux-Corrected Transport Algorithm for Solving Generalized Continuity Equations," NRL MR 6410-93-7192, Naval Research Laboratory, Washington, D.C.
10 1993, Tidman, D.A. and Massey, D.W., "Electrothermal Light Gas Gun," IEEE Trans. Magn., Vol.29, pp.621-624   DOI   ScienceOn
11 1976, Boris, J.P., "Flux-Corrected Transport Modules for Generalized Continuity Equations," NRL MR 3237, Naval Research Laboratory, Washington, D.C.
12 1997, Kohel, J.M., Su, L.K., Clemens, N.T. and Varghese, P.L., "Emission Spectroscopic Measurements and Analysis of a Pulsed Plasma Jet," IEEE Trans. Magn., Vol.35, pp.201-206
13 1975, Schmidt, E.M. and Shear, D.D., "Optical Measurements of Muzzle Blast," AIAA J., Vol.13, pp.1086-1091   DOI   ScienceOn
14 2003, Kim, K., "Time-Dependent One-Dimensional Modeling of Pulsed Plasma Discharge in a Capillary Plasma Device," IEEE Trans. Plasma Sci., Vol. 31, pp.729-735   DOI   ScienceOn
15 2008, Kim, K., "Transient Flowfield Characteristics of Polycarbonate Plasma Discharge from Pulse-Powered Electrothermal Gun Operation," J Therm. Spray Technol., Vol.17, pp.517-524   DOI   ScienceOn
16 1987, Liebermann, R.W. and Zollweg, R.J., "Electrical Conductivity of Nonideal Plasmas," J. Appl. Phys., Vol.62, pp.3621-3627   DOI