Vedantam, S. ; Dhotre, M. T. ; Joshi, J. B. (2006) Three-dimensional CFD simulation of Rayleigh-Benard convection for low Prandtl number fluids Chemical Engineering Research and Design, 84 (1). pp. 29-37. ISSN 0263-8762
Full text not available from this repository.
Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1205/cherd.05064
Abstract
Transient three-dimensional numerical simulations were successfully carried out for the Rayleigh-Benard convection for the low Pr fluid (Pr = 0.025) in a rectangular enclosure. Transient simulations revealed the transitions from contra-rotative cells to the parallel roll formation. The oscillatory behaviour is attributed to recirculation of ascending and descending flows towards central region of the enclosure producing organized rolled motions. The oscillatory characteristics of the fluid for two aspect ratios have been analysed and flow structures have been obtained. The onset of thermal instability has been analysed and observed at the critical Ra from the CFD simulations, and is found to be in agreement with the available experimental data.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Institution of Chemical Engineers. |
| Keywords: | Rayleigh-Benard Convection; Boussinesq Fluid; CFD; Nusselt Number; Aspect Ratio; Oscillatory Behaviour |
| ID Code: | 61093 |
| Deposited On: | 13 Sep 2011 11:09 |
| Last Modified: | 13 Sep 2011 11:09 |
Repository Staff Only: item control page
