| Summary: | 碩士 === 國立成功大學 === 航空太空工程學系 === 83 === To investigate electromagnetic flow problems applied with
magnetic field, an one-dimensional ideal plasma flow in a shock
tube with effects of magnetic field is studied. The computer
code is developed using upwind differencing and TVD scheme, and
the values at computational cell surface are computed using Roe'
s average. In order to verify the performance of the present
numerical simulation, TVD limiters were firstly investigated.
The results of MHD Riemann problem of Brio & Wu were reproduced
and high Mach number cases were computed using gama equal 2 and
5/3, respectively. Finally, the classical shock tube problem
without magnetic field was also computed for comparison. All
the results show the code developed works satisfactorily. This
study investigates the performance of shock tube under
transerve magnetic field with four different levels of
strength. The results show that, with the increase of the level
of magnetic strength, the propagating speed of shock wave is
increased, but the step increase of fluid properties, such as
density, pressure, and velocity after the shock wave are
reduced.
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