热边界层（thermal boundary layer），亦称“温度边界层”。是指黏性流体流动壁面附近形成的以热焓剧变为特征的流体薄层。
热边界层的厚度与距离布风板的位置关系不大。
The thickness of thermal boundary layer has little relations with the distance away from the air distribution.
人们还没有完全认识到利用热边界层进行减阻的重要意义。
People are not completely aware of the importance in making use of the temperature boundary layer to reduce the resistance of the pipeline.
结果表明：理想流体的对流传热与黏性流体同样存在着热边界层。
It is shown that there exists a thermal boundary layer for the convective heat transfer of ideal fluids also, similar to that for viscous fluid.
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