Abstract
This article presents a numerical study concerning effect of surface radiation on natural convection cooling of four discrete iso-flux heaters flush-mounted on a vertical wall of an air-filled (Pr=0.72) rectangular enclosure. Numerical simulations via a finite difference method have been undertaken to examine parametric effects of modified Rayleigh number, heater emissivity, adiabatic surface emissivity, and a radiation parameter on the role played by surface radiation in heat dissipation from the discrete heaters in an enclosure of aspect ratio 10. Results demonstrate that surface radiation can be a significant cooling mechanism of the enclosed discrete heaters and its effect is a function of modified Rayleigh number, the heater emissivity as well as the radiation parameter.
| Original language | English |
|---|---|
| Pages (from-to) | 27-32 |
| Number of pages | 6 |
| Journal | Warme- und Stoffubertragung Zeitschrift |
| Volume | 30 |
| Issue number | 1 |
| Publication status | Published - 1995 Jan 1 |
All Science Journal Classification (ASJC) codes
- Engineering(all)