Flow regime map for a horizontal pipe with uniform wall heat flux and three inlet configurations
✍ Scribed by Afshin J. Ghajar; Lap-Mou Tam
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 910 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0894-1777
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✦ Synopsis
A flow regime map for determination of the boundary between forced and mixed convection in a horizontal circular straight tube with reentrant, square-edged, and bell-mouth inlets under uniform wall heat flux boundary condition is developed. The flow regime map is applicable to all flow regimes (laminar, transition, turbulent). From the flow regime map, for any forced flow represented by a given Reynolds number, the value of the parameter Gr Pr at a particular x/D location indicates whether it is necessary to consider buoyancy effects. For the identified pure forced or mixed convection heat transfer regime, a heat transfer correlation is recommended.