Unsteady supersonic flows over a backward-facing step with applied magnetic field
Khan, Ovais U. Hoffmann, Klaus A.
Khan, Ovais U.
Hoffmann, Klaus A.
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2010
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Khan, O., & Hoffmann, K. (2010). Unsteady Supersonic Flows over a Backward-Facing Step with Applied Magnetic Field. Journal of Spacecraft and Rockets, 47(3), 405-412.
Abstract
Time-dependent behavior of shock/boundary-layer interaction has been investigated numerically for flows over a backward-facing step. Using a multiblock-grid strategy, the global domain of computation has been decomposed into two subdomains representing upstream and downstream regions from the step location. First, Navier-Stokes analysis has been performed to investigate the unsteady shock/boundary-layer interaction. Subsequently, magnetofluid- dynamics computations have been performed to explore the effects of applied magnetic field over the unsteady nature of the problem and its use for local flow control. A time-explicit modified Runge-Kutta scheme with totalvariation- diminishing limiters under a multiblock-grid approach has been implemented. The governing equations are composed of the Navier-Stokes equation modified to include the effect of magnetic field under low-magnetic- Reynolds-number approximation. The effects of an applied magnetic field and a time-dependent magnetic field on the flowfield have been investigated. It has been shown that the application of magnetic field increases the unsteady nature of the problem.
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This is an open access article under the CC BY license.
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American Institute of Aeronautics and Astronautics Inc.
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Journal of Spacecraft and Rockets
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00224650