On the Theory of the Thermomagnetic Torque

Abstract

This paper presents a theory of the thermomagnetic torque which is applicable at pressures so high that Knudsen effects can be neglected. Kinetic theory techniques are used to derive momentum and energy boundary conditions appropriate to transport in the presence of a magnetic field. It is found that thermal creep generated by the field‐induced annular flow of heat contributes substantially to the torque. Calculations based upon a combination of the kinetic theory of Levi, McCourt, and Beenakker and Senftleben—Beenakker experimental data are found to be in reasonable agreement with measurements of torque.