Abstract
Experimental and numerical study of natural convection of air in a partially open square enclosure with two internal heat sources, located at the respective centers of the bottom wall and the right vertical wall, are performed. The left vertical wall, made up of an aluminum plate, has a partial opening that occupies 12.8%, 25%, and 50% of the wall. The effect of opening sizes and Rayleigh numbers on natural convective heat transfer is evaluated. The temperature distribution and the average Nusselt numbers at various Rayleigh numbers are obtained experimentally using the Mach-Zehnder interferometer. These results are compared with the temperature distribution obtained from a numerical simulation performed using ANSYS Fluent 2020 and a maximum deviation of below 8% is obtained with respect to the average Nusselt number. The fringe patterns are found to be highly clustered at higher Rayleigh numbers and larger opening sizes. The average Nusselt number is observed to be higher at higher Rayleigh number and larger opening. The primary circulating cell is stronger for 50% opening which leads to higher heat transfer.
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.
