The effect of Prandtl number on heat transfer from an isothermal rotating disk with blowing at the wall
Abstract
Numerical results for heat transfer from an isothermal rotating disk with moderate to massive blowing at the wall are presented for a wide range of Prandtl numbers. Results show that for a given finite rate of blowing at the wall, the heat transfer rate first increases, reaching a maximum value before falling sharply, as the Prandtl number is increased. The maximum value of heat transfer rate decreases as the blowing rate increases. The results are compared to the asymptotic expansion results of Gersten and Cosart (1980). The phenomenon of boundary layer blow-off is also investigated.
- Publication:
-
International Communications in Heat and Mass Transfer
- Pub Date:
- August 1983
- Bibcode:
- 1983ICHMT..10..287M
- Keywords:
-
- Blowing;
- Laminar Heat Transfer;
- Prandtl Number;
- Rotating Disks;
- Temperature Profiles;
- Velocity Distribution;
- Wall Flow;
- Fluid Mechanics and Heat Transfer