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Impact of Magnetic Field on Thermal Convection in a Linearly Heated Porous Cavity
Abstract Combined effect of magnetic field and buoyancy on the thermo-fluid flow in a porous cavity is examined in this work considering top cold, bottom insulated and sidewalls linearly heated. The study is conducted extensively using an indigenous code. Fundamentals of thermo-fluid flow in the cavity are explored to appreciate heat transfer characteristics under the parametric variations of Rayleigh number (Ra), Hartmann number (Ha) and Darcy number (Da). The ranges of these parameters are Ra = 103 − 105, Ha = 10–100, Da = 10−7–10−3. Moreover, the variations in magnetic field inclination angle ( $$\gamma$$ = 0 − 180°, with respect to the cavity base) and porosity ( $$\varepsilon$$ = 0 − 1) are included. The temperature and flow fields are analyzed using isotherms and streamlines, whereas the visualization of convective heat flow is presented using heatlines. The exceptions in the general trends of the obtained average Nusselt number for clear domain as well as porous domain with the magnetic fields are noted along with the heat transfer characterization.
Impact of Magnetic Field on Thermal Convection in a Linearly Heated Porous Cavity
Abstract Combined effect of magnetic field and buoyancy on the thermo-fluid flow in a porous cavity is examined in this work considering top cold, bottom insulated and sidewalls linearly heated. The study is conducted extensively using an indigenous code. Fundamentals of thermo-fluid flow in the cavity are explored to appreciate heat transfer characteristics under the parametric variations of Rayleigh number (Ra), Hartmann number (Ha) and Darcy number (Da). The ranges of these parameters are Ra = 103 − 105, Ha = 10–100, Da = 10−7–10−3. Moreover, the variations in magnetic field inclination angle ( $$\gamma$$ = 0 − 180°, with respect to the cavity base) and porosity ( $$\varepsilon$$ = 0 − 1) are included. The temperature and flow fields are analyzed using isotherms and streamlines, whereas the visualization of convective heat flow is presented using heatlines. The exceptions in the general trends of the obtained average Nusselt number for clear domain as well as porous domain with the magnetic fields are noted along with the heat transfer characterization.
Impact of Magnetic Field on Thermal Convection in a Linearly Heated Porous Cavity
Gupta, Aakash (author) / Midya, Sayanta (author) / Biswas, Nirmalendu (author) / Manna, Nirmal K. (author)
2019-01-01
20 pages
Article/Chapter (Book)
Electronic Resource
English
| British Library Online Contents | 2019
| British Library Online Contents | 2019
| British Library Online Contents | 2019
Free convection of hybrid Al2O3-Cu water nanofluid in a differentially heated porous cavity
| British Library Online Contents | 2017