Heat Transfer
Heat transfer lectures by Professor Josua Meyer (2014). Topics covered in the lectures include: transient or unsteady heat conduction, convection heat transfer, external and internal forced convection, heat exchangers, thermal radiation including atmospheric and solar radiation. The lectures are based on the textbooks of White (8th ed) and Cengel and Ghajar (4th ed) and were presented as part of a heat transfer class to the fourth year students of the Department of Mechanical and Aeronautical Engineering, University of Pretoria.
| Lecture 28 - Internal Forced Convection (2of8) |
This lecture is the second lecture on internal forced convection. It gives an overview of the calculation of hydrodynamic and thermal entrance lengths for laminar and turbulent flows. It also discusses the differences in Nusselt numbers in the laminar and turbulent flows for developing and developed flows. It explains the two types of heating and/or cooling conditions; constant wall temperature and constant heat flux. It starts with a detailed analysis of the constant heat flux condition.
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