An Experimental Study Of Yield Stress Fluid Displacement Flows In A Moving Annulus
Loading...
Date
May-18
Authors
Amiri, Amin
Mollaabbasi, Roozbeh
Journal Title
Journal ISSN
Volume Title
Publisher
CSME-SCGM
Abstract
In this paper, the displacement flow of a viscoplastic fluid by a non-Newtonian fluid in a vertical annulus is experimentally studied. The two fluids have a very small density difference. The light displaced fluid is placed below the heavy displacing fluid. Buoyancy, the imposed flow velocity and the annulus motion are the important flow parameters. In regard to the annulus motion, two scenarios are considered: first, the annulus is stationary; Second, the annulus slowly reciprocates with an amplitude of 100 mm and the frequency of 0.1 Hz. Our experimental results demonstrate that the displacement flow efficiency increases significantly when the annulus is in motion.
Description
Paper presented at 2018 Canadian Society of Mechanical Engineers International Congress, 27-30 May 2018.
Keywords
Fluid Mechanics, Miscible displacement flows, Non-Newtonian, Moving geometry, Annulus