Mixing processes of plasmas in electrothermal-chemical guns

Woodley, C.

doi:10.1109/elt.2004.1398102

Cited by 4 publications

(2 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Woodley et al proposed an enhanced gas generation rate (EGGR) coefficient to predict the plasma ignition burning rate [23,27]. As shown in equation (1), u is the propellant burning rate, β is the burning rate coefficient of the solid propellant, p is the pressure, α is the burning rate pressure index, E is the electrical power input and ε is the EGGR coefficient that is highly related to the electrical power.…”

Section: Introductionmentioning

confidence: 99%

Study of the enhanced burning rate during the plasma-propellant interaction process

Wang

Yang

Fan

et al. 2019

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

Plasma ignition technology has been widely used for decades due to its great improvement in enhanced burning rate. However, the interaction process between the plasma jet and the solid propellant is still far from being elucidated. In this paper, coupling the flow model of plasma jet and the chemical reaction model of propellants, a more comprehensive model for predicting the plasma enhanced burning rate is presented. Three types of energetic thermoplastic elastomers propellant are involved. In addition, the closed bomb vessel test is conducted to investigate the burning characteristics of propellant under the action of plasma for comparison. It demonstrates that the enhanced combustion phenomenon of propellants in the experiment can be well described by an enhanced burning rate coefficient epsilon calculated with the model, which could reflect the effect of plasma jet to some extent. The results show that the composition of the energetic material and its surface temperature are the key factors influencing the plasma-enhanced combustion. This model would bring some insight on the interaction mechanisms between plasma and different propellants.

show abstract

Section: Introductionmentioning

confidence: 99%

Study of the enhanced burning rate during the plasma-propellant interaction process

Wang

Yang

Fan

et al. 2019

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

show abstract

“…Understanding the mixing processes of plasma jet with solid propellant under gun firing conditions is key to utilising EGGR in an ETC gun that uses a capillary plasma generator. Theoretical work has been conducted to investigate the effect of background gas pressure on plasma jet penetration in a 155 mm ETC gun [6]. The results showed that little radial expansion of the plasma occurs.…”

Section: B Fundamental Researchmentioning

confidence: 99%

UK electric gun national overview

Hinton¹,

Gilbert²

2004 12th Symposium on Electromagnetic Launch Technology, 2004.

View full text Add to dashboard Cite

This paper reviews the research carried out over the last two years into electric guns on behalf of the UK Ministry of Defence. The electromagnetic (EM) gun programme has been broadened to include rectangular as well as round bore configurations. Theoretical and experimental studies have been carried out to investigate a variety of lightweight launcher concepts at both large (90 mm equivalent bore) and medium (40 mm equivalent bore). Launcher research has concentrated on rail, insulator and containment designs for fieldable barrels. Projectile research has concentrated on armature materials, geometric configuration and the development of instrumented proof shot for measuring in-bore shot/barrel interactions. Measurement of in-bore lateral acceleration has been successfully accomplished during an EM launch environment. Electrothermal-chemical (ETC) gun research continues with the aim of gaining a more comprehensive understanding of the potential benefits and physics of this technology. The fundamental research element has concentrated on a detailed investigation of the nature of the interaction between plasma and propellant for both plasma induced combustion control, and for the plasma ignition of gun propellants. The applied research element is investigating the potential benefits of plasma ignition of charges for future medium weight platforms. The programme includes work on the circumferential ignition of very high loading density charges, compensation for the effect of charge temperature, the ignition of low vulnerability propellants and the accuracy of a plasma ignited soft recoil gun.

show abstract

Application of transient burning rate model of solid propellant in electrothermal-chemical launch simulation

Jin

Wan

et al. 2016

Defence Technology

View full text Add to dashboard Cite

Mixing processes of plasmas in electrothermal-chemical guns

Cited by 4 publications

References 10 publications

Study of the enhanced burning rate during the plasma-propellant interaction process

Study of the enhanced burning rate during the plasma-propellant interaction process

UK electric gun national overview

Application of transient burning rate model of solid propellant in electrothermal-chemical launch simulation

Contact Info

Product

Resources

About