Zhang, J., Dembele, S. and Wen, Jennifer X. (2009) Investigation of turbulence models for CFD simulations of gas and liquid pool fires. Journal of Fire Sciences, Volume 27 (Number 2). pp. 157-182. doi:10.1177/0734904108097441 ISSN 0734-9041.
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Abstract
The effect of turbulence models on CFD predictions of gas and liquid pool fires is investigated. A buoyancy-modified four-equation (4EQ) model and two modified versions of the standard two-equation(2EQ) k-ε model are employed for simulating three pool fire scenarios. The 4EQ model includes all the important source terms in the turbulent heat flux expressions and emphasizes the anisotropy of turbulence due to buoyancy effects by adding an algebraic term to the eddy-viscosity expression of Reynolds stresses. Predicted results show that the 4EQ model predicts far larger values of buoyancy production of turbulent kinetic energy than the 2EQ models, and consequently achieves better agreement with experimental temperature and velocity data.
| Item Type: | Journal Article |
|---|---|
| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering |
| Journal or Publication Title: | Journal of Fire Sciences |
| Publisher: | Sage Publications Ltd. |
| ISSN: | 0734-9041 |
| Official Date: | 2009 |
| Dates: | Date Event 2009 Published |
| Volume: | Volume 27 |
| Number: | Number 2 |
| Page Range: | pp. 157-182 |
| DOI: | 10.1177/0734904108097441 |
| Status: | Peer Reviewed |
| Publication Status: | Published |
| Access rights to Published version: | Restricted or Subscription Access |
| URI: | https://wrap.warwick.ac.uk/54563/ |
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