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phillips_icc07_p1019.pdf2007-02-16 10:32:03Michael Phillips

Numerical Simulations of Coaxial Pulsed Plasma Jets

Author: Michael W. Phillips
Requested Type: Poster Only
Submitted: 2006-12-18 16:01:36

Co-authors: F.W. Witherspoon, A.Case, S.D.Frese, M.H.Frese

Contact Info:
HyperV Technologies Corp.
25 White Pine LN
Princeton, NJ   08540

Abstract Text:
We report on computational studies related to recent experiments of coaxial pulsed plasma jets and supporting technology. Hypervelocity plasma jets have a variety of uses including momentum injection, drivers for magnetized target fusion (MTF) and plasma refueling. This past year HyperV Technologies Corp. designed and built a plasma jet for the Maryland MCX experiment. The plasma jet is now operational with initial results reported elsewhere at this conference. The HyperV plasma jet has a unique shape designed to delay the onset of the blow-by instability. Numerical simulations using the Mach2 2½-D MHD code of the performance and calibration of the device will be presented. In the HyperV plasma jet, the plasma is initially injected into the device using a circular array of coaxial capillaries. The performance of these capillaries affects the overall performance of the device and is of particular interest. Capillary injectors are also employed in HyperV’s 2Pi experiment (also reported elsewhere at this conference) which studies the coalescing, and convergence of plasma jets. Simulations of the capillary discharge with comparison to experiments will be presented. Another issue affecting the overall performance of plasma jets is the dynamics of the plasma blob on exiting from the accelerator. Simulations of this phenomena and how the nozzle can be optimized will be examined.

*See also posters by A. Hassam and R. Ellis at this conference.

**Research funded by the DOE Office of Fusion Energy Science through Grants DE-FG02-05ER84189,DE-FG02-05ER54835

Characterization: B2

Place next to poster from F.W. Witherspoon -
Pulsed Injector Development for Dense Plasma Jets

and Andrew Case -
A Plasma Jet Accelerator for the Maryland Centrifugal Experiment

University of Maryland

Innovative Confinement Concepts Workshop
February 12-14, 2007
College Park, Maryland

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