Study of the expansion characteristics of a pulsed plasma jet in air

Xuewei ZHAO (赵雪维); Yonggang YU (余永刚); Shanshan MANG (莽珊珊); Xiaochun XUE (薛晓春)

doi:10.1088/2058-6272/aa596e

Plasma Science and Technology > 2017 > 19(4): 45402-045402. > DOI: 10.1088/2058-6272/aa596e

Xuewei ZHAO (赵雪维), Yonggang YU (余永刚), Shanshan MANG (莽珊珊), Xiaochun XUE (薛晓春). Study of the expansion characteristics of a pulsed plasma jet in air[J]. Plasma Science and Technology, 2017, 19(4): 45402-045402. DOI: 10.1088/2058-6272/aa596e

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Study of the expansion characteristics of a pulsed plasma jet in air

1 School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, People’s Republic of China 2 School of Science, Nanjing University of Science and Technology, Nanjing 210094, People’s Republic of China

Funds: This work is supported by National Natural Science Foun?dation of China (No. 51506094).

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Received Date: July 24, 2016

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Abstract

Abstract

In the background of electrothermal-chemical (ETC) emission, an investigation has been conducted on the characteristics of a freely expanding pulsed plasma jet in air. The evolutionary process of the plasma jet is experimentally investigated using a piezoelectric pressure sensor and a digital high-speed video system. The variation relation in the extended volume, axial displacement and radial displacement of the pulsed plasma jet in atmosphere with time under different discharge voltages and jet breaking pressures is obtained. Based on experiments, a two-dimensional axisymmetric unsteady model is established to analyze the characteristics of the two-phase interface and the variation of flow - field parameters resulting from a pulsed plasma jet into air at a pressure of 1.5–3.5 MPa under three nozzle diameters (3mm, 4mm and 5mm, respectively). The images of the plasma jet reveal a changing shape process, from a quasi-ellipsoid to a conical head and an elongated cylindrical tail. The axial displacement of the jet is always larger than that along the radial direction. The extended volume reveals a single peak distribution with time. Compared to the experiment, the numerical simulation agrees well with the experimental data. The parameters of the jet field mutate at the nozzle exit with a decrease in the parameter pulse near the nozzle, and become more and more gradual and close to environmental parameters. Increasing the injection pressure and nozzle diameter can increase the parameters of the flow field such as the expansion volume of the pulsed plasma jet, the size of the Mach disk and the pressure. In addition, the turbulent mixing in the expansion process is also enhanced.
- electrothermal-chemical propulsion,
- pulsed plasma jet,
- injection pressure,
- nozzle diameter,
- experiment,
- numerical simulation

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References (25)

References

[1]	Chaboki A, Zelenak S and Isle B 1997 IEEE Trans. Magnet. 33 284
[2]	Koleczko A et al 2001 Propell. Expl. Pyrotech. 26 75
[3]	Dyvik J et al 2007 IEEE Trans. Magnet. 43 303
[4]	Kohel J M et al 1999 IEEE Trans. Magnet. 35 201
[5]	Kim J U and Suk H 2002 Appl. Phys. Lett. 80 368
[6]	Taylor M J 2001 IEEE Trans. Magnet. 37 194
[7]	Jia M et al 2013 Study on the spark discharge plasma jet driven by nanosecond pulses 2013 IEEE Conf. on Electrical Insulation and Dielectric Phenomena (CEIDP) (Shenzhen, China)(https://doi.org/10.1109/CEIDP.2013.6747459)
[8]	Lu X et al 2016 Phys. Rep. 630 1
[9]	Lu X et al 2014 Phys. Rep. 540 123
[10]	Chang L M and Howard S L 2007 In?uence of pulse length on electrothermal plasma jet impingement ?ow ARL-TR-4348 (Aberdeen Proving Ground, MD: US Army Research Laboratory)
[11]	Chang L M and Howard S L 2007 Electrothermal-chemical plasma ignition of gun-propelling charges: the effect of pulse length ARL-TR-4253 (Aberdeen Proving Ground, MD: US Army Research Laboratory)
[12]	Yang L L et al 2016 Plasma Sci. Technol. 18 912
[13]	Zhang J et al 2015 Plasma Sci. Technol. 17 202
[14]	Nusca M J et al 1999 Computational and experimental investigations of open-air plasma discharges 37th AIAA Aerospace Sciences Meeting and Exhibit (Reno, United States)
[15]	Nusca M, McQuaid M and Anderson W 2000 Investigation of a high-velocity, multi-species jet undergoing unsteady expansion into open air 38th AIAA Aerospace Sciences Meeting and Exhibit (Reno, United States)
[16]	Nusca M, McQuaid M and Anderson W 2000 Numerical simulation of an open-air plasma jet using a multi-species reacting ?ow CFD code 31st Plasmadynamics and Lasers Conf. (Denver, United States)
[17]	Sharikov I and Surzhikov S 2005 Experimental study of unsteady supersonic underexpanded ablative plasma jet dynamics 36th AIAA Plasmadynamics and Lasers Conf. (Toronto, Canada)
[18]	Zhang Q et al 2010 J. Ballist. 22 97 (in Chinese)
[19]	Zhang Q, Yu Y G and Yuwen C L 2012 J. Ballist. 24 1 (in Chinese)
[20]	Wilson D E, Kim K and Raja L L 1999 IEEE Trans. Magnet. 35 228
[21]	Kim K 2008 J. Therm. Spray Technol. 17 517
[22]	Liu B, Zhang T and Gawne D T 2000 Surf. Coat. Technol. 132 202
[23]	Porwitzky A et al 2007 Chemically reacting plasma jet expansion simulation for application to electrothermal chemical guns 38th Plasmadynamics and Lasers Conf. (Miami, United States)
[24]	Porwitzky A J, Keidar M and Boyd I D 2008 Progress towards an end-to-end model of an electrothermal chemical gun 14th Symp. on Electromagnetic Launch Technology (Victoria, Canada)
[25]	Jin Y 2014 Study on radiation ignition and combustion characteristic of solid propellant by electrothermal plasma PhD Nanjing University of Science and Technology, China (in Chinese)