Axial velocity distribution of a two-component plasma in a magnetised tube of slowly varying section

In this study we investigate the combined effects of channel indentation and presence of neutral gas (impurities) on the flow of a two-component plasma gas through a magnetized cylinder with indentation. For small indentation, expressed in e, analytic solutions are obtained for the axial velocities, induced magnetic fields, current densities and pressure gradients. The effects of the channel indentation and percentage impurities on the flow characteristics are shown graphically and discussed quantitatively. [Global Jnl Pure & Appl. Sci. Vol.9(3) 2003: 415-421]