Cooling a hot semiannulus with constant heat flux by using Fe3o4-Water nanofluid and a magnetic field: natural convection mechanism
Document Type
Article
Publication Date
5-26-2022
Abstract
In this simulation, the nanoparticle distribution and entropy generation were studied using the Buongiorno's developed two-phase model and magnetic field inside a porous semiannulus cavity. The influence of three terms was considered in the Buongiorno's developed two-phase model such as Brownian motion, thermophoresis, and magnetophoresis effects. In addition, the entropy generation was assessed due to temperature and velocity gradient. The evidence showed that the effects of the magnetic field in high porosities and volume fraction of nanoparticles were remarkable on the Nusselt number and entropy generation. Also, irreversibility due to heat transfer is much greater than fluid friction.
Keywords
Nanoscience & NanotechnologyMaterials science, Multidisciplinary
Divisions
sch_ecs
Funders
Deanship of Scientific Research at King Khalid University [Grant No:PNURSP2022R46],Shaanxi Key Research and Development Plan [Grant No:S2021-YF-YBGY-0708],Princess Nourah bint Abdulrahman University [Grant No:R.G.P.1/157/42]
Publication Title
Journal of Nanomaterials
Volume
2022
Publisher
Hindawi Publishing Corporation
Publisher Location
ADAM HOUSE, 3RD FLR, 1 FITZROY SQ, LONDON, W1T 5HF, ENGLAND