加熱Lコーナまわりに生じる自然対流

垂直面まわりの流動と伝熱

抄録

Experimental investigations have been carried out on natural convective flows over a heated L-corner in which the vertical plate was shorter than the horizontal plate. Special interest was paid to the fluid flow and heat transfer around the vertical plate. The height of vertical plates, H, were varied as H=10-150mm. The width of horizontal plate was 350mm constant. The test fluid was water. The flow fields and the surface temperatures were visualized with fluorescent dye and liquid crystal thermometry, respectively. The local heat transfer coefficients of the vertical plate were also measured. The result shows that the recirculating flow appears irregularly around the vertical plate when H is less than 30mm. It is also found that the local heat transfer coefficients show a maximum at H/2 when the recirculating flow appears around the vertical plate.