An investigation of the combined influence of rarefaction and Darcy effects on the flow of oscillatory MHD viscous, incompressible, chemically reacting, and electrically conducting fluid in a vertical channel is carried out. The fluid is assumed to be gray and absorbing and emitting radiation but to be a nonscattering medium. The flow is assumed to be laminar and hydrodynamically and thermally fully developed. The Navier-Stokes, energy, and concentration equations, which are accompanied by appropriate velocity-slip and temperature-jump boundary conditions, are analytically solved.It is found that rarefaction effects significantly influence the flow and thermal fields such that mass flow and heat transfer rates are increased as compared to the continuum regime.
Abstract. Some remarks are made about the use of modern statistical formalism in the calculation of the zonal-flow growth rate and the backreaction of zonal flows on drift waves.
The Maryland Centrifugal eXperiment (MCX) is a novelr otating mirrorp lasma, whichi sa xially confined by the centrifugalf orce. The interchange modesc an be stabilized by the sheari nt he azimuthal rotation velocity. Both these goals canb e accomplishedi ft he rotations peedsa re supersonic with a Mach number~5. So farM ach numbers~2 have been accomplished.T husr esiduali nterchange fluctuationsa re observedo ns ixteen magnetic pick-upc oils placed azimuthally at an axiall ocationm id-wayb etween the central sectiona nd the mirrort hroat. The fluctuationsa re analyzed andm odeledu sing a low-dimensional system of equations fort he interchange mode coupled to zonalf lows.
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