NDLI: Numerical investigation of near-field plasma flows in magnetic nozzles

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Numerical investigation of near-field plasma flows in magnetic nozzles

Content Provider	NASA Technical Reports Server (NTRS)
Author	Sankaran, Kamesh Polzin, Kurt A.
Copyright Year	2009
Description	The development and application of a multidimensional numerical simulation code for investigating near-field plasma processes in magnetic nozzles are presented. The code calculates the time-dependent evolution of all three spatial components of both the magnetic field and velocity in a plasma flow, and includes physical models of relevant transport phenomena. It has been applied to an investigation of the behavior of plasma flows found in high-power thrusters, employing a realistic magnetic nozzle configuration. Simulation of a channel-flow case where the flow was super-Alfvenic has demonstrated that such a flow produces adequate back-emf to significantly alter the shape of the total magnetic field, preventing the flow from curving back to the magnetic field coil in the near-field region. Results from this simulation can be insightful in predicting far-field behavior and can be used as a set of self-consistent boundary conditions for far-field simulations. Future investigations will focus on cases where the inlet flow is sub-Alfvenic and where the flow is allowed to freely expand in the radial direction once it is downstream of the coil.
File Size	1273713
Page Count	6
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20090034472
Archival Resource Key	ark:/13960/t1dk0dn5j
Language	English
Publisher Date	2009-08-02
Access Restriction	Open
Subject Keyword	Numerical Analysis Time Dependence Transport Properties Plasmas Physics Far Fields Predictions Near Fields Boundary Conditions Inlet Flow Computerized Simulation Magnetohydrodynamic Flow Magnetic Nozzles Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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