抄録
Time-space distribution of convective heat transfer behind a backward-facing step was measured in order to investigate the mechanisms of the heat transfer caused by the flow separation and reattachment. This measurement was achieved by using a high-speed infrared thermograph which measured temperature fluctuation on a thin conductive-film heated electrically. As a result, the spatio-temporal behavior of the heat transfer, which was reflected by the vortical structure formed in the near-wall region, was clearly revealed.