Laminar forced convective heat transfer with varying properties in straight duct inlets
Abstract
Numerical results of air undergoing laminar forced convective heat transfer in a straight duct with uniform wall temperature have been obtained for uniform inlet velocity and temperature profiles. The coupled governing partial differential equations were solved in descretized form with property variations being updated through physical property relations. This enabled the physical property and thermo-fluid solutions to converge simultaneously, resulting in a realistic solution to the governing equations. Constant property results were also obtained and Nusselt numbers of both the constant and variable property models were compared with those of other numerical computations. The results of the variable property model were also compared with available experimental data. The variable property results exhibited excellent correlation with the available experimental data. A sensitivity analysis was performed to determine the effects of individual property variations on local Nusselt numbers.
- Publication:
-
IN: Computers in engineering 1985; Proceedings of the International Computers in Engineering Conference and Exhibition
- Pub Date:
- 1985
- Bibcode:
- 1985coen....3..293M
- Keywords:
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- Convective Heat Transfer;
- Ducted Flow;
- Forced Convection;
- Inlet Flow;
- Laminar Heat Transfer;
- Air Flow;
- Computational Fluid Dynamics;
- Nusselt Number;
- Fluid Mechanics and Heat Transfer