1. Turbulent Convective Heat Transfer in a Transversely Grooved Tube with Natural Convection Effect
- Author
-
Xiang Yang Shen, Jing Ding, and Jian Feng Lu
- Subjects
Quantitative Biology::Biomolecules ,Natural convection ,Materials science ,Convective heat transfer ,Physics::Instrumentation and Detectors ,Turbulence ,Thermodynamics ,General Medicine ,Heat transfer coefficient ,Mechanics ,Concentric tube heat exchanger ,Nusselt number ,Physics::Fluid Dynamics ,Combined forced and natural convection ,Heat transfer - Abstract
The turbulent convective heat transfer in a transversely grooved tube of molten salt with natural convection effect has been numerically investigated. In general, the average Nusselt number with and without considering natural convection in transversely grooved tube was almost equal. According to the simulated results, the heat transfer coefficient of transversely grooved tube in upside region was lower than that of downside region. The effect of natural convection on unilateral heat transfer in transversely grooved tube was more obvious with lower Reynolds number and higher inlet temperature, and the effect of natural convection on unilateral heat transfer was lower with bigger groove deep.
- Published
- 2015