Abstract
Jet impingement of a cold fluid is an efficient cooling method of a heated surface. Jets employed together with porous media with high porosity and thermal conductibility, such as aluminum foams, allows to improve the heat removal from a heated surface. In the present study, a parallel-plate channel filled partially with a high permeability porous medium and a single slot jet impinging on the porous medium is investigated numerically. The opposite wall to the air slot jet is partially heated at uniform heat flux. The porous medium is modeled using the Brinkman–Forchheimer-extended Darcy model that takes into account viscosity and inertia effects. The analysis in the porous medium is accomplished under local thermal equilibrium conditions and a two-dimensional numerical model is developed to evaluate the hydrodynamic and heat transfer characteristics within the channel. The investigations are carried out for 1<Pe<1000 and 10<Ra*<1000 at several thickness of the porous medium. Results indicate that for the channel with a porous medium thickness equal to the channel gap the highest average Nusselt number are detected.
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.
