Simulating a pulsed-power-driven plasma with ideal MHD

Plasma Pulsed Power Generation

MHD pulsed power for geophysics and the SDI

This past September, a series of preliminary geophysical experiments took place near Los Angeles, California using a portable MHD (magnetohydrodynarnic) generator. This sys­ tem delivers a short pulse of electromagnetic energy which can potentially be used to map the geological structures of the Earth, find bodies of ore, and help in predicting earth­ quakes. MHD technology applied to electroma...

Simulating solar MHD

Two aspects of solar MHD are discussed in relation to the work of the MHD simulation group at KIS. Photospheric magneto-convection, the nonlinear interaction of magnetic ®eld and convection in a strongly strati®ed, radiating ̄uid, is a key process of general astrophysical relevance. Comprehensive numerical simulations including radiative transfer have significantly improved our understanding of...

A potential lagrangian formulation of ideal MHD

We propose a reformulation of ideal magnetohydrodynamics written in the lagrangian variable as an enlarged system of hyperelastic type, with a specific potential. We study the hyperbolicity of the model and prove that the acoustic tensor is positive for all directions which are non orthogonal to the magnetic field. The consequences for eulerian ideal magnetohydrodynamics and for numerical discr...

Water Purification Using Non-thermal Plasma Driven by Blumlein-line Stacked Pulsed Power Generator

A water purification by streamer discharge using a stacked Blumlein line pulsed power generator under the water containing pollutants has been investigated. The pulsed power generator consisted of six stacked Blumlein line to generate high voltage with low charging voltage. The output voltage was applied to a wire electrode to generate streamer discharge in the water. The wire electrode was set...