Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/916677

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Title
Determining the thickness of liquid film in laminar condition on a rotating drum surface using CFD
Author/Creator
Khan, N.;  Naser, J.
Institution
The University of Newcastle. Faculty of Engineering & Built Environment, School of Engineering
Description
This is a pioneering paper that deals with the semi-steady-state liquid film thickness on a rotating drum partially submerged in liquid using CFD. The CFD predictions have been compared with both experimental results and analytical solutions. The liquid film thickness and the film rising on a circular curved wall were monitored for various rpm of the rotating drum. The 2D simulations were performed neglecting the end effects (assuming the rotating drum is very long). As the rotating drum speed was increased, the film thickness was found to increase at the film rising side and at the minimum film thickness point (top of the rotating drum). There was never been a steady-state condition reached, the opposite was expected as a wiper is used in the CFD calculation (same as the experimental investigation). The liquid that leaves the domain by the wiper (as outflow boundary condition) is forced to enter to the domain from far end to keep the level of the free surface constant.
Relation
Chemical Engineering Science Vol. 64, Issue 5, p. 919-924
Publisher Link
http://dx.doi.org/10.1016/j.ces.2008.10.051
Date
2009
Publisher
Elsevier
Keyword(s)
films;  rotating drum;  fluid mechanics;  laminar flow;  mathematical modelling;  thickness of film;  validation of liquid film model;  semi-steady-state liquid film
Resource Type
journal article
Identifier
http://hdl.handle.net/1959.13/916677
Identifier
ISSN:0009-2509
Reviewed
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Subject
"Chemical Engineering Science"
 
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