Forced convection heat transfer in doubly connected ducts |
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| Affiliation: | 1. Department of Mechanical Engineering, College of Technology, University of Aden, Maalla, Aden, PDR Yemen;7. Department of Mechanical and Industrial Engineering, University of Roorkee, Roorkee-247667, India;71. Alternate Hydro Energy Centre, University of Roorkee, Roorkee 247667, India;1. Shanghai Aircraft Design and Research Institute, Shanghai, 201210, China;2. Florida Atlantic University, Boca Raton, FL, 33431, USA;1. Department of Pathophysiology, University of Split School of Medicine, 21000 Split, Croatia;2. Clinical Department of Diagnostic and Interventional Radiology, University Hospital of Split, 21000 Split, Croatia;3. Department of Health Studies, University of Split, 21000 Split, Croatia;4. Department of Medical Laboratory Diagnostics, University Hospital of Split, 21000 Split, Croatia;5. Department of Integrative Physiology, University of Split School of Medicine, 21000 Split, Croatia |
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| Abstract: | Forced convection heat transfer in doubly connected ducts bounded externaly by a circle and internally by a regular polygon of various shapes is analysed using a finite element method. Hydrodynamically and thermally developed, steady, laminar flow of a constant property fluid is investigated. An insulated outer tube and constant heat flux at the inner core are considered. Temperature profiles as well as Nusselt numbers are presented. Salient characteristics of the temperature field in such passages are identified. Correlations for the Nusself number with aspect ratio are suggested. |
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