Turbulent heat and momentum transfer for electrically conducting fluid flowing in twodimensional channel under transverse magnetic field
Abstract
A heatand momentumtransfer analysis is performed for the fully developed turbulent MHD flow of an electrically conducting fluid in a twodimensional constantarea channel. It is assumed that a uniform magnetic field perpendicular to the insulated channel walls exists in the channel. A mathematical model of turbulence, which takes into account the suppression of turbulence by the magnetic field, is proposed for the prediction of the momentum transfer. The analytical results for skinfriction coefficients, mean velocity profiles, the distributions of eddy diffusivity, and of turbulent kinetic energy show good agreement with the relevant experimental data in the Reynolds number range from 50,000 to 200,000 and the Hartmann number range from 0 to 700. For the heattransfer analysis, a case of constant wall heat flux is treated, and the tendency of the reduction of heattransfer rate by the magnetic field shows good qualitative agreement with the experimental results.
 Publication:

6th International Heat Transfer Conference, Volume 3
 Pub Date:
 1978
 Bibcode:
 1978iht.....3..159K
 Keywords:

 Channel Flow;
 Magnetohydrodynamic Flow;
 Magnetohydrodynamic Turbulence;
 Momentum Transfer;
 Turbulent Heat Transfer;
 Two Dimensional Flow;
 Coefficient Of Friction;
 Heat Flux;
 Heat Transfer Coefficients;
 Kinetic Energy;
 Skin Friction;
 Temperature Distribution;
 Turbulent Diffusion;
 Plasma Physics