Heat transfer enhancement in the complex geometries filled with porous media
نویسندگان
چکیده
The present numerical investigation aims to analysis the enhancement heat transfer in nanofluid filled-complex geometries saturated with a partially layered porous medium. vertical walls of cavity are taken as complex wavy geometries. horizontal flat insulated temperature. is filled and upper half In analysis, governing equations formulated for natural convection under Boussinesq approximation various environments including pure-fluid, nanofluid, this investigation, effects Rayleigh number (103 ? Ra 105), Darcy parameter (10?6 Da 10?3), thermophoresis (0.1 Nt 0.5), buoyancy ratio Nr Brownian motion Nb inclination angle (0? 90?), geometry parameters ?1 R have been studied on streamlines, temperature, nanoparticles volume fraction, local Nusselt number, Sherwood number. It found that, performance can be improved by adjusting surface. Overall, results showed that enhance obtained provide useful insight enhancing two separate layers medium inside complex-wavy cavity.
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ژورنال
عنوان ژورنال: Thermal Science
سال: 2021
ISSN: ['0354-9836', '2334-7163']
DOI: https://doi.org/10.2298/tsci181218166r