Abstract
This paper investigates conjugate natural convection heat transfer inside a water–Al2O3 nanofluid filled prismatic cavity having thick bottom wall. The governing Navier-Stokes and energy equations are solved using Galerkin finite element method. The effects of three heating conditions (isothermally, linearly-varying and sinusoidally varied temperature of the bottom wall) and different Raleigh numbers (103 ≤ Ra ≤ 107) on thermal field, flow field and entropy generation within the cavity have been depicted through isotherm, streamline and isentropic plots. Average Nusselt number along the top of the thick bottom wall and total entropy generation inside the cavity are also examined in order to estimate the influence of the above mentioned conditions. It is found that sinusoidal heating condition provides higher heat transfer rate for Ra ≥ 2×105.
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.
