An analytic velocity profile for pressure-driven flow of a Bingham fluid in a curved channel

Tirion Gruffudd Roberts, Simon Cox

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

20 Dyfyniadau (Scopus)
273 Wedi eu Llwytho i Lawr (Pure)

Crynodeb

We derive an expression for the velocity profile of a pressure-driven yield-stress fluid flowing around a two-dimensional concentric annulus. This result allows the prediction of the effects of channel curvature on the pressure gradient required to initiate flow for given yield stress, and for the width of the plug region and the flux through the channel at different curvatures. We use it to validate numerical simulations of the flow from a straight channel into a curved channel which show how the fluid first yields everywhere before reaching the predicted velocity profile.
Iaith wreiddiolSaesneg
Rhif yr erthygl104278
Tudalennau (o-i)1-10
Nifer y tudalennau10
CyfnodolynJournal of Non-Newtonian Fluid Mechanics
Cyfrol280
Dyddiad ar-lein cynnar23 Maw 2020
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 01 Meh 2020

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