Abstract

In this paper, the heat transfer of natural convection along a vertical flat plate was investigated experimentally. Heat transfer coefficients were first measured in a wide variety of projection arrangements. The results showed that heat transfer coefficients were about 1.6∼1.8 times as large as those for a smooth wall. Then, various wall temperature patterns were also visualized by a liquid crystal sheet. It was noted that low-temperature streaks appeared on the wall, and that they played a significant role in heat transfer.

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