ANALYSIS OF PLASMA CRITICAL FLOW IN ABLATIVE DISCHARGE CAPILLARIES WITH A NONCONSTANT CROSS-SECTION

Citation
J. Ashkenazy et D. Zoler, ANALYSIS OF PLASMA CRITICAL FLOW IN ABLATIVE DISCHARGE CAPILLARIES WITH A NONCONSTANT CROSS-SECTION, Journal of Plasma Physics, 53, 1995, pp. 267-276
Citations number
18
Categorie Soggetti
Phsycs, Fluid & Plasmas
Journal title
ISSN journal
00223778
Volume
53
Year of publication
1995
Part
3
Pages
267 - 276
Database
ISI
SICI code
0022-3778(1995)53:<267:AOPCFI>2.0.ZU;2-1
Abstract
A quasi-one-dimensional model for the steady-state flow of a plasma in an ablative discharge capillary is presented for capillaries with non -constant cross-section. It is demonstrated that small modifications o f the capillary geometry can lead to significant changes in the plasma exit parameters. In this respect, the possibility of obtaining an ext ended range of plasma parameters makes this type of ablative capillary a useful source of plasma for a variety of applications. Numerical so lution of the equations of the model for the critical-flow case allows evaluation of the main fluid-dynamic and thermodynamic parameters of the plasma inside the capillary and at its exit.