A Computational Fluid Dynamics Study of Laminar Forced Convection Improvement of a Non-Newtonian Hybrid Nanofluid within an Annular Pipe in Porous Media
نویسندگان
چکیده
Porous inserts and nanofluids are among the conventional methods for amelioration of heat transfer in industrial systems. The rate could also be improved by utilizing porous substances with a higher thermal conductivity these This research work presents two-dimensional (2D) numerical examination laminar forced convection an Al2O3-CuO-carboxy methyl cellulose (CMC) non-Newtonian hybrid nanofluid within annular pipe medium. medium was inserted two inner or outer wall cases. For flow modeling media, Darcy–Brinkman–Forchheimer formulation employed. Additionally, power-law technique utilized as fluid viscosity model considered fluid. governing equations were discretized according to finite volume method (FVM) using computational dynamics (CFD) software package ANSYS-FLUENT. cylinder walls’ boundary conditions exposed constant flux. various Darcy numbers, impacts different fractions (0% 5%), total Nusselt number, pressure drop, performance number (PN) evaluated. outcomes indicate that coefficient increases considerably decrease (0.1 0.0001), well increase thickness ratio. Moreover, it found nanoparticles’ increased fraction would ameliorate and, more considerably, PN factor. Furthermore, both cases I II ratio (rp=1,Da=0.0001) high (?=5%), maximum reached 1274.44. applying 5% Da=0.1 rp=1 highest value index equal 7.61, which is augmented roughly 88% compared case zero fraction.
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ژورنال
عنوان ژورنال: Energies
سال: 2022
ISSN: ['1996-1073']
DOI: https://doi.org/10.3390/en15218207