Abstract
A numerical study on the turbulent flow and heat transfer characteristics in the rectangular channel with different types of baffles is carried out. The inclined baffles have the width of 19.8 cm, the square diamond type hole having one side length of 2.55 cm, and the inclination angle of 5o. Reynolds number is varied between 23,000 and 57,000. The SST turbulence model is applied in the calculation. The validity of the numerical results is examined by the experimental data. The numerical results of the flow field depict that the flow patterns around the different baffle type are entirely different and these significantly affect the local heat transfer characteristics. The heat transfer and friction factor characteristics are significantly affected by the perforation density of the baffle plate. It is found that the heat transfer enhancement of baffle type II (3 hole baffle) has the best values.
| Original language | English |
|---|---|
| Pages (from-to) | 324-329 |
| Number of pages | 6 |
| Journal | World Academy of Science, Engineering and Technology |
| Volume | 37 |
| Publication status | Published - Jan 2009 |
| Externally published | Yes |
Keywords
- Friction factor
- Heat transfer
- Inclined baffle
- Rectangular channel
- Turbulent flow