ON THE LAMINAR FORCED-CONVECTION WITH AXIAL CONDUCTION IN A CIRCULAR TUBE WITH EXPONENTIAL WALL HEAT-FLUX

被引：11
作者：
BARLETTA, A
ZANCHINI, E
机构：
[1] Istituto di Fisica Tecnica Facoltà di Ingegneria, Università di Bologna, Bologna, I-40136
来源：
HEAT AND MASS TRANSFER | 1995年 / 30卷 / 05期
关键词：
D O I：
10.1007/BF01463917
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The values of the fully developed Nusselt numb er for laminar forced convection in a circular tube with axial conduction in the fluid and exponential wall heat flux are determined analytically. Moreover, the distinction between the concepts of bulk temperature and mixing-cup temperature, at low values of the Peclet number, is pointed out. Finally it is shown that, if the Nusselt number is defined with respect to the mixing-cup temperature, then the boundary condition of exponentially varying wall heat flux includes as particular cases the boundary conditions of uniform wall temperature and of convection with an external fluid.
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页码：283 / 290
页数：8
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