Browse > Article

Solid-liquid 2phase flow in a concentric annulus with rotation of the inner cylinder  

Kim, Young-Ju (Korea Institute of Geoscience and Mineral Resources)
Han, Sang-Mok (School of Mechanical Engineering Sungkyunkwan Univ.)
Woo, Nam-Sub (School of Mechanical Engineering Sungkyunkwan Univ.)
Hwang, Young-Kyu (School of Mechanical Engineering Sungkyunkwan Univ.)
Publication Information
Journal of Energy Engineering / v.18, no.2, 2009 , pp. 87-92 More about this Journal
Abstract
An experimental investigation is conducted to study a 2-phase vertically upward hydraulic transport of solid particles by water and non-Newtonian fluids in a slim hole concentric annulus with rotation of the inner cylinder. Rheology of particulate suspensions in viscoelastic fluids is of importance in many applications such as particle removal from surfaces, transport of proppants in fractured reservoir and cleaning of drilling holes, etc. In this study, a clear acrylic pipe was used in order to observe the movement of solid particles. Annular velocities varied from 0.3 m/s to 2.0 m/s. The mud systems included fresh water and CMC solutions. Main parameters considered in the study were inner-pipe rotation speed, fluid flow regime and particle injection rate. A particle rising velocity and pressure drop in annulus have been measured for fully developed flows of water and of aqueous solutions. For both water and 0.2% CMC solutions, the higher the concentration of the solid particles is, the larger the pressure gradients become.
Keywords
Annulus flow; Non-Newtonian fluid; Slip velocity; Solid-liquid two phase flow;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Kim, Y. J. and Hwang, Y. K.: "Experimental study on the vortex flow in a concentric annulus with a rotating inner cylinder", International Journal of KSME, Vol.17, No.4, pp.562-570, (2003)   DOI
2 Escudier, M. P., Oliveira, P. J. and Pinho, F. T.: "Fully developed laminar flow of purely viscous non-Newtonian liquids through annuli, including the effects of eccentricity and inner-cylinder rotation", I. J. Heat and Fluid Flow, Vol.23, pp.52-73, (2002)   DOI   ScienceOn
3 Lauzon, R. V. and Reid, K. I. B.: "New Rheological Model Offers Field Alternatives", Oil and Gas Journal, Vol.77, pp.51-57, (1979)
4 Tao, L. N. and Donovan, W. F.: "Through Flow in Concentric and Eccentric Annuli of Fine Clearance With and Without Relative Motion of the Boundaries", Trans. ASME, pp.1291-1301, (1955)
5 Becker, H. A.: "The effects of Shape and Reynolds Number on Drag in the Motion of a Freely Oriented Body in an Infinite Fluid", Can. J. Chem. Eng., pp.85-91, (1959)
6 Hottovy, J. D. and Sylvester, N. D.: "Drag Coefficients of Irregularly Shaped Particles", I&EC Process Design and Development, Vol.18, pp.443, (1997)