In this article, a confined impinging slot jet in a converging channel is numerically investigated. The flow is laminar and a constant temperature is applied on the impingement surface. The governing mass, momentum and energy equations are solved using finite volume method. In order to consider the effect of converging angle on the flow and temperature fields in the channel, the numerical simulations were performed for different angles of 0e5. Also different geometrical parameters and also the Reynolds number have been considered to study the behavior of the system in terms of stagnation point, average and local Nusselt number and stream function contours. The results showed that the intensity and size of the vortex structures increase with raising jet-impingement surface distance ratio (H/W), Reynolds number and also converging angle. The maximum Nusselt number occurs at the stagnation point and the highest values correspond to about H/W ¼ 5. Also, as the converging angle increases, the average Nusselt number and skin friction increase due to raising velocity gradient along the channel
| مقالات | |
| حجم فایل | 3038 کیلوبایت |
| زبان مقاله | ENGLISH |
| سال انتشار | 2014 |
| محل انتشار | International Journal of Thermal Sciences |
| مشخصات کلی | |
| تعداد صفحات | 9 |
| تعداد صفحات محصول | 1-20 |
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Laminar forced convection of a confined slot impinging jet in a converging channel
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