The flow along a wall moving reversely to a parallel non-Newtonian, power-law, stream
type: Item
instance of: scholarly article
title: The flow along a wall moving reversely to a parallel non-Newtonian, power-law, stream
zbMATH Open document ID: 1400.76012
DOI: 10.1504/PCFD.2014.062430
author: Asterios Pantokratoras
published in: Progress in Computational Fluid Dynamics
publication date: 2018-11-12T00:00:00Z
review text: Summary: The flow induced by a flat plate, with finite length, moving reversely to a parallel ambient stream of a non-Newtonian, power-law fluid is considered in the present paper. This problem has been investigated partly in the past [\textit{J. B. Klemp} and \textit{A. Acrivos}, J. Fluid Mech. 53, 177--191 (1972; Zbl 0242.76019); ibid. 76, 363--381 (1976; Zbl 0344.76026)] but only for a Newtonian fluid and using a modified boundary layer approximation. In the present work, the investigation is based on the solution of the complete equations using the commercial code ANSYS FLUENT. It is found that for low Reynolds numbers and low power-law index (\(n < 0.5\)) the drag coefficient obeys the relationship \(c_D = A/\mathrm{Re}\). It was also found that the drag coefficient, in general, increases with the velocity ratio parameter \(\lambda\), but at \(\lambda\) around 2, the drag coefficient shows a local sharp decrease (drag crisis). An explanation for this crisis is given.
Mathematics Subject Classification ID: 76A05
Mathematics Subject Classification ID: 76B47
zbMATH DE Number: 6976533
zbMATH Keywords: non-Newtonian
zbMATH Keywords: flat plate
zbMATH Keywords: drag crisis
zbMATH Keywords: reverse flow
describes a project that uses: FLUENT
MaRDI profile type: Publication
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full work available at URL: pcfd.2014.062430
OpenAlex ID: W2024485846
description: scientific article; zbMATH DE number 6976533