摘要：The use of computational fluid dynamics (CFD) is becoming more common and reliable as a tool for kindsof buildings fire safety design, but it is not easy to be validated. In this paper, Fire Dynamics Simulator v5.0is used to investigate the spill plume and the resultant natural filling in the underground transport passage ofmain transformer of a hydropower station due to the adjacent main transformer hall fire. Ceiling jet temperaturedecay along the transport passage and smoke layer interface height are simulated. Series of scale modelexperiments are carried out using pool fires placed at the centre of the main transformer hall. The dataobtained from these experiments are later used in a validation study of the FDS simulated results. The FDSsimulated results are also compared with the expressions proposed in the literature. The results show goodagreement between experimental and numerical predictions. And through suitable adjustment of the constantsof the exponential equation, good agreements are also found between the predicted data and calculatedresults.
