Effective Flow of Micropolar Fluid through a Thin or Long Pipe

Igor Pažanin

Mathematical Problems in Engineering, 2011, vol. 2011, 1-18

Abstract:

The aim of this paper is to present the result about asymptotic approximation of the micropolar fluid flow through a thin (or long) straight pipe with variable cross section. We assume that the flow is governed by the prescribed pressure drop between pipe's ends. Such model has relevance to some important industrial and engineering applications. The asymptotic behavior of the flow is investigated via rigorous asymptotic analysis with respect to the small parameter, being the ratio between pipe's thickness and its length. In the case of circular pipe, we obtain the explicit formulae for the approximation showing explicitly the effects of microstructure on the flow. We prove the corresponding error estimate justifying the obtained asymptotic model.

Date: 2011
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:127070

DOI: 10.1155/2011/127070

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