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Two-phase Flow Model and Simulation of Solid Propellant Electrothermal Chemical Gun(PDF)

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2000年04期
Page:
318-321
Research Field:
Publishing date:

Info

Title:
Two-phase Flow Model and Simulation of Solid Propellant Electrothermal Chemical Gun
Author(s):
DaiRong LiBaoming
School of Power Engineering,NUST,Nanjing 210094
Keywords:
elect rothermal gun tw o-phase flow model plasma adapt ive grid method
PACS:
TJ012
DOI:
-
Abstract:
T he one-dimensional tw o-phase flow model of solid propellant elect rothermal chemical g un ( SPETCG) is established in the paper. An extension of conventional two-phase flow model for study of f lame-spreading in gun ballist ics includes: in the early part of the ballist ic cycle, an integ ra-l numerical method has been developed to describe the plasma jet penet rat ion; within the major ballist ic cycle, a leng th model of plasma penetration and an electrical enhancement factor have been int roduced into the tw o-phase flow model. Moreover, enhancement effect s of high temperature plasma on interphase heat exchange have been taken into account . According to the character of plasma jet inject ion in the SPET CG, an adapt ive g rid t reatment is incorporated in the model. The calculat ions show that there are some dif ferent characters betw een SPET CG interior ballist ic process and convent ional process, and it provides theoretical evidence for the SPETCG ballist ic desig n.

References:

1 Kaplan Z, Saphier D, Melnik D, et al. Eletrot hermal augmentation of a solid propellant launcher. IEEE Tr ansactions o n Magnetics, 1993, 29( 1) : 573~ 578
2 Greig J R, Earnhart J, Winsor N. Inv est igation of plasma- augmented solid- propellant interior ballist ics processes. IEEE Tr ansactions o n Magnetics, 1993, 29( 1) : 555~ 560
3 Alimi R, Perelmutter L, Onn U1 Modeling an inter nal injectio n process for the solid propellant electrothermal chemical gun. in: Harry C, Bailey R. Pr oceedings o f the 16th I nternat ional Symposium on Ballistics, CA, Vol 11San Francisco: ADPA1409~ 418
4 戴荣. 消融控制电弧等离子体增强固体含能工质点火与燃烧特性的研究: [ 博士学位论文] .南京: 南京理工大学, 1999
5 金志明, 袁亚雄, 宋明. 现代内弹道学. 北京: 北京理工大学出版社, 1992

Memo

Memo:
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Last Update: 2013-03-25