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Unsteady Natural Convection Flow In A Square Cavity Filled With A Porous Medium Due To Impulsive Change In Wall Temperature
| Content Provider | Indian Institute of Science (IISc) |
|---|---|
| Author | Kumari, M. Nath, G. |
| Copyright Year | 2009 |
| Abstract | Unsteady natural convection flow in a two- dimensional square cavity filled with a porous material has been studied. The flow is initially steady where the left- hand vertical wall has temperature T-h and the right- hand vertical wall is maintained at temperature T-c ( T-h T-c) and the horizontal walls are insulated. At time t 0, the left- hand vertical wall temperature is suddenly raised to (T-h) over bar ((T-h) over bar T-h) which introduces unsteadiness in the flow field. The partial differential equations governing the unsteady natural convection flow have been solved numerically using a finite control volume method. The computation has been carried out until the final steady state is reached. It is found that the average Nusselt number attains a minimum during the transient period and that the time required to reach the final steady state is longer for low Rayleigh number and shorter for high Rayleigh number. |
| File Format | |
| Journal | PeerReviewed |
| Language | English |
| Publisher | Springer |
| Publisher Date | 2009-04-01 |
| Access Restriction | Authorized |
| Subject Keyword | Mathematics |
| Content Type | Text |
| Resource Type | Article |
