Abstract
Spatio-temporal characteristics of convective heat transfer accompanied by the separated and reattaching flow are investigated. The distribution of heat transfer coefficient in the reattaching region is measured by an infrared thermography. It compared with the distribution of velocity measured by PIV. Both instantaneous measurements show spot-like distributions which indicates that the spot-like flow reattachment causes the spot-like heat transfer enhancement. Moreover, the relation between the position of maximum heat transfer coefficient and the time mean reattaching point were examined. In the case of forward-facing step flow, the position of maximum heat transfer exists about a step height upstream to the reattaching point.
