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
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.