Magnetic Field Effects on Axis-Switching and Instabilities in Rectangular Plasma Jets |
| |
Authors: | Benjamin M Riley Sharath S Girimaji Jacques C Richard Kurnchul Lee |
| |
Institution: | (1) Department of Aerospace Engineering, Texas A & M University, College Station, TX 77843-3141, USA |
| |
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. |
| |
Keywords: | Magnetic field Rectangular plasma jets Axis-switching Flow instabilities Vorticity Energy exchange Magneto-hydro-dynamic |
本文献已被 SpringerLink 等数据库收录! |