Magnetic Field Effects on Axis-Switching and Instabilities in Rectangular Plasma Jets Academic Article

abstract

• The effect of an external magnetic field on the evolution of rectangular plasma jets is examined. Specifically investigated is the influence of a primarily axial magnetic field on the uniquely characteristic axis-switching phenomenon of rectangular jets and flow instabilities. The results indicate that the magnetic field decelerates the jet (more rapid spreading), prevents axis-switching and inhibits instabilities. The key physical mechanisms underlying the changes are (1) the ability of the magnetic field to reverse the direction of vorticity and (2) transfer of energy from kinetic to magnetic forms. This study has important implications for magneto-hydro-dynamic flow control and propulsion applications. © 2008 Springer Science+Business Media B.V.

authors

• Girimaji, Sharath
• Richard, Jacques

published proceedings

• Flow, Turbulence and Combustion

author list (cited authors)

• Riley, B. M., Girimaji, S. S., Richard, J. C., & Lee, K

citation count

• 3

complete list of authors

• Riley, Benjamin M||Girimaji, Sharath S||Richard, Jacques C||Lee, Kurnchul

publication date

• April 2009

publisher

• Springer Science and Business Media LLC  Publisher

published in

• Flow, Turbulence and Combustion  Journal

keywords

• Axis-switching
• Energy Exchange
• Flow Instabilities
• Magnetic Field
• Magneto-hydro-dynamic
• Rectangular Plasma Jets
• Vorticity

Digital Object Identifier (DOI)

• 10.1007/s10494-008-9182-y

start page

• 375

end page

• 390

volume

• 82

issue

• 3