Heat transfer in a tapered passage |
| |
| Institution: | 1. Heat Transfer Laboratory, Division of High Temperature Engineering, Japan Atomic Energy Research Institute, Tokai-Mura, Naka-Gun, Ibaraki-Ken 319-11, Japan;1. School of Medicine, Louisiana State University Health Shreveport, 1501 Kings Highway, Shreveport, LA, 71130, USA;2. Department of Molecular and Cellular Physiology, Louisiana State University Health Shreveport, 1501 Kings Highway, Shreveport, LA, 71130, USA;3. Department of Radiology, Louisiana State University Health Shreveport, 1501 Kings Highway, Shreveport, LA, 71130, USA;1. Section of Engine and Energy, Xi’an High-Tech Institute, Xi’an 710025, China;2. School of Power and Engine, Northwestern Polytechnical University, Xi’an 710072, China;1. CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Thermal Science and Energy Engineering, University of Science and Technology of China, No. 96 Jinzhai Road, Hefei 230027, Anhui, PR China;2. Aero-engine Institute of Aviation Industry Corporation of China, No. 1 Wanlian Road, Shenyang 110015, Liaoning, PR China |
| |
| Abstract: | Heat transfer to laminar flow in tapered passages is studied for two types of thermal boundary conditions: prescribed heat flux on both walls, and on one wall with the other wall adiabatic. In the analysis, the flow is assumed to be purely radial. Temperature distributions and Nusselt number are obtained for the heat flux q ∞ rδ. The Nusselt number depends on Reynolds number and taper angle. The fully developed Nusselt number decreases with increase in δ for converging flow and increases for diverging flow. Constant heat flux boundary conditions, δ = 0, for converging flow yield a reduction in Nusselt number when compared with the case of parallel channel flow. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
