On the inverse Magnus effect in free molecular flow

A Newton-inspired particle interaction model is introduced to compute the sideways force on spinning projectiles translating through a rarefied gas. The simple model reproduces the inverse Magnus force on a sphere reported by Borg, Söderholm and Essén [Phys. Fluids 15, 736 (2003)] using probability...

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Bibliographic Details
Published inPhysics of fluids (1994) Vol. 16; no. 2; pp. L9 - L12
Main Authors Weidman, Patrick D., Herczynski, Andrzej
Format Journal Article
LanguageEnglish
Published 01.02.2004
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Summary:A Newton-inspired particle interaction model is introduced to compute the sideways force on spinning projectiles translating through a rarefied gas. The simple model reproduces the inverse Magnus force on a sphere reported by Borg, Söderholm and Essén [Phys. Fluids 15, 736 (2003)] using probability theory. Further analyses given for cylinders and parallelepipeds of rectangular and regular polygon section point to a universal law for this class of geometric shapes: when the inverse Magnus force is steady, it is proportional to one-half the mass M of gas displaced by the body.
ISSN:1070-6631
1089-7666
DOI:10.1063/1.1633265