一、前言 空气冷却旋转圆筒,文献[1]曾研究了均匀流场中空气外掠水平旋转圆筒的换热,实验圆筒直径50mm。文献[2]则在忽略自然对流的条件下,对均匀流场理想绕流的旋转圆筒换热进行了理论分析。对于较大直径的旋转圆筒,采用置于风洞中冷却的方法是极不经济的,有鉴于此,本文提出采用条形喷咀喷吹的方法强化旋转圆筒的冷却,并研究了它的换热过程,得到了换热关联式。 I. Introduction Air-cooled rotating cylinder, literature [1] has studied the uniform flow field air swept horizontal rotating cylinder heat transfer, the experimental cylinder diameter of 50mm. In [2], a theoretical analysis of the heat transfer of a rotating cylinder with a perfect flow around an ideal flow field is given under the condition of neglecting the natural convection. For the larger diameter rotating cylinder, it is uneconomical to adopt the method of cooling in the wind tunnel. In view of this, the paper proposes to use the nozzle of the nozzle to enhance the cooling of the rotating cylinder and to study it Of the heat transfer process, get the heat transfer correlation.