Influence of ventilated shrouds on the convective heat transfer to a circular cylinder
Abstract
Convective heat transfer to shrouded cylinders in transverse flow has been studied over the Reynolds number range 2000-20,000. The influence of shroud ventilation, relative shroud diameters, and orientation of the ventilation holes was studied. In some cases, average inner-cylinder Nusselt numbers were found to exceed the comparable bare-cylinder values by as much as 50 percent. Cylinder heat convection was influenced more by the degree of ventilation and shroud diameter than by hole orientation. An equivalent inner bare cylinder diameter, based on degree of shroud ventilation and shroud diameter, was developed which can be useful in shroud design studies.
- Publication:
-
International Journal of Heat and Mass Transfer
- Pub Date:
- August 1987
- DOI:
- 10.1016/0017-9310(87)90314-0
- Bibcode:
- 1987IJHMT..30.1685D
- Keywords:
-
- Circular Cylinders;
- Convective Heat Transfer;
- Shrouds;
- Ventilation;
- Wind Tunnel Tests;
- High Reynolds Number;
- Hole Distribution (Mechanics);
- Hole Geometry (Mechanics);
- Nusselt Number;
- Fluid Mechanics and Heat Transfer