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| Titel: |
NATURAL CONVECTION HEAT TRANSFER IN A POROUS LAYER WITH MULTIPLE PARTITIONS |
| Auteur: |
Vasseur, P. Wang, C.H. |
| Verschenen in: |
Chemical engineering communications |
| Paginering: | Jaargang 114 (1992) nr. 1 pagina's 145-167 |
| Jaar: |
1992-04-01 |
| Inhoud: |
Laminar natural convection heat transfer in inclined porous layers with multiple diathermal partitions is studied analytically and numerically. On the basis of the Darcy-Oberbeck-Boussinesq equations, the problem is solved analytically in the limit of a thin layer with constant flux boundary conditions. The relationship between overall heat transfer and the number of partitions N, their relative positions Nu and the angle of inclination φ of the system is determined The critical Darcy-Rayleigh number Rc for the onset of convection in a bottom-heated horizontal system is predicted. The results are compared with limiting cases of the problem and are found to be in agreement. The influence of a thermal barrier which is sandwiched between two porous layers is also discussed. A numerical study of the same phenomenon, obtained by solving the complete system of governing equations, is conducted. A good agreement is found between the analytical predictions and the numerical simulation. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 8 van 11 gevonden artikelen
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