Kinetic Theory of Drag on Objects in Nearly Free Molecular Flow
Statistical Mechanics
2015-06-19 v2
Abstract
Using an analogy between the density expansion of the transport coefficients of moderately dense gases and the inverse-Knudsen-number expansion of the drag on objects in nearly free molecular flows, we formulate the collision integrals that determine the first correction term to the free-molecular drag limit. We then show how the procedure can be applied to calculate the drag coefficients of an oriented disc and a sphere as a function of the speed ratio.
Keywords
Cite
@article{arxiv.1404.7826,
title = {Kinetic Theory of Drag on Objects in Nearly Free Molecular Flow},
author = {J. V. Sengers and Y. -Y. Lin Wang and B. Kagmar-Parsi and J. R. Dorfman},
journal= {arXiv preprint arXiv:1404.7826},
year = {2015}
}
Comments
10 figures, 6 tables; Typographical errors corrected