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van Beijeren H., Dorfman J.R. — Kinetic Theory of Hydrodynamic Flows. II. The Drag on a Sphere and on a Cylinder
van Beijeren H., Dorfman J.R. — Kinetic Theory of Hydrodynamic Flows. II. The Drag on a Sphere and on a Cylinder

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Название: Kinetic Theory of Hydrodynamic Flows. II. The Drag on a Sphere and on a Cylinder

Авторы: van Beijeren H., Dorfman J.R.

Аннотация:

Journal of Statistical Physics, Vol. 23, No. 4, 1980. p. 443-461.
In this paper we continue the study of solutions of the extended Boltzmann equation started previously. In particular, we study an iterated solution of the equation that can be used to describe the flow of a rarefied gas around a macroscopic object. We discuss the rarefied flow and then show how the iterated solution can be extended into the hydrodynamic regime. The results for the drag force and for the distribution function of the gas molecules are shown to be identical to the results obtained in a previous paper by a generalization of the normal solution method. We also discuss the special properties of both rarefied and continuum flows around a cylinder and show that in both regions one must take into account Oseen-like terms which naturally appear in the extended Boltzmann equation. In the hydrodynamic regime we obtain Lamb's formula for the force on the cylinder. By relating the terms in the iterated expression to dynamical events taking place in the fluid, we are able to discuss the dynamical origin of the results obtained here.


Язык: en

Рубрика: Физика/

Тип: Статья

Статус предметного указателя: Неизвестно

ed2k: ed2k stats

Год издания: 1980

Количество страниц: 19

Добавлена в каталог: 06.10.2013

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