Exceeding a certain value of curvature, the natural convection heat-transfer of arc slates is better than inclined-plate slates with 45degree.

• 对圆弧形叶片与曲率为零时的平板形叶片(倾斜角度为45度)比较发现,只有叶片的曲率大于一定数值时,弧形叶片的自然对流换热才优于平板形叶片。