Analytical Treatment of Hollow Toroid Flux Tubes
Published: Jul 29, 2025
Last Updated: Jul 29, 2025
Authors:Herbert Schmidt
Abstract
Stray flux tubes around cylindrical poles are commonly modelled starting from the results for planar flux tubes using the circumference of the cylinder as depth. While this is a tried and tested approach, we here discuss analytical expressions using the actual axisymmetric geometry of a fraction of a hollow torus and compare their results to those of the accepted approach.