The boundary layer on a wall nearly parallel to a magnetic field

This paper calculates the structure of the boundary layer which occurs at the wall of a non-conducting duct in fully-developed laminar flow of a conducting fluid when the wall is inclined at a small angle theta to the uniform transverse magnetic field and when the Hartmann number M is high. When theta is large compared with Msup(-1/2) the layer splits into a Hartmann layer on the inclined wall and a weak shear layer emanating from the duct corner along field lines. These two layers cause equal reductions in the total flow rate. (Auth.)