Abstract
The numerical solution solution is obtained for fluid flow and heat transfer in a confined impinging slot on a solid block with the presence of baffles. In order to consider the effect of baffle shape the rectangular and semi circular baffles are considered and for the effect for Reynolds number the Reynolds number is varied from 100 to 300 with the step of 50. The present study reveals the vital impact of Baffle shape and Reynolds number (Re) on the fluid flow and heat transfer characteristics over a wide range. It is finally added that the presence of baffle improves the Nusselt number. The Nusselt number increases with the increase of Reynolds number. The present study proved that, the primary peak of Nusselt number occurs nearer to the reattachment length. The secondary peak of Nusselt number occurs nearer to the baffle. It is observed that for semi circle baffle the velocity attains maximum one compared to rectangular baffle.
Highlights
The jet impingement cooling technique is used in industries like turbine blade cooling, rocket launcher cooling, electrical, metal annealing, and textile drying and electronic equipments in order to confiscate a huge amount of heat
It is inferred that the average surface temperature increases with the increase of Reynolds number
When the Reynolds number increase the thermal boundary layer thickness decreases in the wall region
Summary
The jet impingement cooling technique is used in industries like turbine blade cooling, rocket launcher cooling, electrical, metal annealing, and textile drying and electronic equipments in order to confiscate a huge amount of heat. There are many numerical and experimental investigations are conducted to find out the effect of confinement wall on jet impingement. Hussein M.Maghrabie et al [2] numerically investigated the heat transfer and pressure drop of in line array of heated obstacles cooled by jet impingement in cross flow. They concluded that there was a significant change in jet impingent cross flow and normal flow of jet impingement. WithadaJedsadaratanachai etal [3] predicted numerically V baffles can induce a drastic increase in Nusselt number and higher friction
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
