NDLI: Three-dimensional numerical modeling of magnetohydrodynamic augmented propulsion experiment

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Three-dimensional numerical modeling of magnetohydrodynamic augmented propulsion experiment

Content Provider	NASA Technical Reports Server (NTRS)
Author	Turner, M. W. Litchford, R. J. Hawk, C. W.
Copyright Year	2009
Description	Over the past several years, NASA Marshall Space Flight Center has engaged in the design and development of an experimental research facility to investigate the use of diagonalized crossed-field magnetohydrodynamic (MHD) accelerators as a possible thrust augmentation device for thermal propulsion systems. In support of this effort, a three-dimensional numerical MHD model has been developed for the purpose of analyzing and optimizing accelerator performance and to aid in understanding critical underlying physical processes and nonideal effects. This Technical Memorandum fully summarizes model development efforts and presents the results of pretest performance optimization analyses. These results indicate that the MHD accelerator should utilize a 45deg diagonalization angle with the applied current evenly distributed over the first five inlet electrode pairs. When powered at 100 A, this configuration is expected to yield a 50% global efficiency with an 80% increase in axial velocity and a 50% increase in centerline total pressure.
File Size	16804653
Page Count	72
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20110008067
Archival Resource Key	ark:/13960/t0tr0wg77
Language	English
Publisher Date	2009-10-01
Access Restriction	Open
Subject Keyword	Spacecraft Propulsion And Power Electrodes Magnetohydrodynamics Propulsion System Performance Thrust Augmentation Research Facilities Mathematical Models Three Dimensional Models Crossed Fields Propulsion System Configurations Electric Current Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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