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DTIC ADA1046869: Analytical Studies of High-Pressure MHD Accelerators
by Defense Technical Information Center
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An analytical study was made of the feasibility of using
an MHD- augmented arc as the primary component of a large
reentry vehicle test facility. Computer studies of the
performance of MHD accelerator channels were made for
systems having channel input power of 50 MW to 1,700 MW.
It was determined that complete simulation of reentry
conditions is not possible in a single extended- flow
facility. The studies showed, however, that very large
increases in performance over existing arc facilities
could be attained by use of MHD augmentation, provided,
however, that several very difficult design problems
could be solved. The most critical problem area was
identified as that of maintaining the design integrity of
the magnetic-field walls of the channel, which requires
that a high level of electrical insulation be retained
under a heating load of up to 10 sq cm. Only a marked
increase in high-temperature materials technology would
permit the use of uncooled refractories for these walls.
The possibility of using film cooling for these walls was
explored and it was found that, in addition to a
substantial increase in complexity, such an approach
would result in significant reductions in performance and
efficiency of the MHD channel.
Date Published: 2020-05-01 02:31:30
Identifier: DTIC_ADA1046869
Item Size: 34214556
Language: english
Media Type: texts
# Topics
DTIC Archive; Whitehead, G L ; ARNOL...
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