Hydromagnetic Free Jet

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Abstract
Laminar and turbulent two-dimensional incompressible viscous free jet flow is studied for a conducting fluid. A constant magnetic field transverse to the axis of the jet is considered and the stream functions are expanded about the nonmagnetic jet solutions. The parameter of expansion is the square of the Hartmann number divided by the Reynolds number and results are computed to the first order in the expansion parameter. The results indicate a qualitative similarity for both the laminar and turbulent cases. The magnetic field depresses the axial velocity of the jet near the center of the jet but increases the axial velocity in the outer regions of the jet. The transverse velocity at the jet boundary is reduced in the presence of the magnetic field. The discharge rate of the jet is also reduced in the presence of magnetic field.

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