Chhabra, R. P. (1996) Wall effects on terminal velocity of non-spherical particles in non-Newtonian polymer solutions Powder Technology, 88 (1). pp. 39-44. ISSN 0032-5910
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Official URL: http://www.sciencedirect.com/science/article/pii/0...
Related URL: http://dx.doi.org/10.1016/0032-5910(96)03100-2
Abstract
This paper elucidates the effect of confining boundaries on the free falling velocity of variously shaped rigid particles in quiescent non-Newtoninan shearthinning polymer solutions. Cylinders, needles, cubes and prisms, thin square plates and circular discs of different sizes and made of different materials (1200-8000 kg/m3) were sedimented in polymer solutions in cylindrical tubes of different diameters (20-100mm). The hindrance effect due to the walls is quantified in terms of a wall factor which is a function only of particles size and shape, and tube diameter in the streamline region (Re < ∼ 6-7). Simple expressions are put forward which correlate the present, as well as the previous scant, results satisfactorily.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Wall effects; Power law; Non-spherical particles; Terminal velocity; Shearthinning fluids |
| ID Code: | 78757 |
| Deposited On: | 23 Jan 2012 03:32 |
| Last Modified: | 23 Jan 2012 03:32 |
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