AI Article Synopsis
- The study investigates how natural convection behaves in a hybrid nanofluid (AlO-Cu-water) within an inverse U-shaped cavity, influenced by an external magnetic field and including porous media effects for realism in industrial applications.
- The cavity features partially heated upper walls and wavy cooling walls, and the research employs a FORTRAN code with a finite difference method to solve the governing equations, confirming model accuracy through comparisons with prior studies.
- Results show significant changes in the Nusselt number (N) based on various parameters, including increases with the amplitude, heater location, thermal radiation, and wavelength, while also revealing that some factors like heat source length and magnetic field strength lead to decreases in N.
Article Abstract
The present investigation deals with the natural convection (NC) of AlO-Cu-water hybrid nanofluid (HNF) within a " "-shaped cavity under the influence of an externally applied magnetic field (MF). Also we studied the porous media with radiative effect as well as common heat transfer for better fitting to real industrial problems. The inverse U shaped-cavity design includes upper walls that are partially heated and wavy right and left walls designed for cooling purposes, while the remaining walls are maintained as adiabatic. A FORTRAN home code using finite difference method-based approach is adopted to solve the governing equations. A verification is performed by comparing with previous numerical investigations to substantiate the precision of the established numerical model. The findings are expressed in term of stream function, isotherms, and local and averaged Nusselt number. It was found that by increasing amplitude (A), location of the heater (D), thermal radiation parameter (Rd) and wavelength (λ) about 140%, 94%, 775%, and 28% N increases, respectively. In addition, by increasing Dimensionless of heat source/sink length (B), Ha, and heat generation/absorption coefficient (Q) about 20%, 1.1% and 28% N decreases, respectively. Also, N first decreases and then increases by increasing Ra.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11604438 | PMC |
| http://dx.doi.org/10.3389/fchem.2024.1441077 | DOI Listing |
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