| Autor: |
null Uzair Ali Khan, null Shahid Husain, null Suhail Ahmad Khan, null Mohd Owais Khan, null Noman Khan, null Raheel Usmani |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
CFD Letters. 14:125-132 |
| ISSN: |
2180-1363 |
| Popis: |
Numerical inspection of natural thermally induced flow in horizontal annulus has been carried out. The annulus taken under consideration is the circular annulus. By applying heat flux to the inner tube, the inner wall of the annulus is kept at high temperature and the outer wall of the annulus is maintained at constant low temperature. The numerical simulations were accomplished by varying concentrations of the hybrid nanofluid of a hybrid alumina-copper various for each Rayleigh number (4 x 104 < Ra < 4 x l05). Heat transmission through natural convection using air as convective fluid, in the body of horizontally placed annulus resided between two same hollow cylinders, is calculated. The influence of the Rayleigh number along with particle concentration on heat transmission characteristics, change in fluid flow and effective thermal conductivity of an annulus has been studied. The results showed a proportional rise in the heat transfer performance and effective thermal conductivity with the increasing particle concentration and Rayleigh numbers. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
