期刊
CASE STUDIES IN THERMAL ENGINEERING
卷 44, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.csite.2023.102838
关键词
Brownian diffusion; Thermophoresis; Thermal radiation; Tangent hyperbolic nanofluid; Reaction catalysts; Activation energy; Gyrotactic microorganisms
The study investigates the impact of double diffusion, activation energy, Brownian motion, thermal radiation, thermophoresis, viscous dissipation, magnetic field, and Joule heating on bioconvection of a tangent hyperbolic nanofluid flow over a vertical stretching porous surface containing microbe. The fluid transport equations are solved using the finite difference method and the effects of key parameters on the fluid's transport properties are depicted in graphs and tables. It is observed that higher dimensionless activation energy leads to a decrease in mass transfer rate at the stretched nanomaterial sheet, and the concentration of the nanofluid near the sheet decreases with an increase in the porosity parameter value, but the opposite behavior is observed far from the sheet.
The idea of activation energy appearing in a chemical reaction has been widely applied to the production of biodiesel, hydrogen, oil storage, geothermal manufacturing, base liquid mechanics, oil emulsified, food manufacturing, a significant renewable energy source, as well as sewage systems. This study aims to investigate the resultant repercussions of double diffusion, activation energy, Brownian motion, thermal radiation, thermophoresis, viscous dissipation, magnetic field, and Joule heating on bioconvection of a tangent hyperbolic nanofluid flow over a vertical stretching porous surface containing microbe (gyrotactic microorganisms). The fluid transport equations are converted into ordinary differential equations using appropriate self-similarity variables after being solved using the finite difference method. The impacts of key parameters on the fluid's transport properties are depicted in graphs and tables. When the dimensionless activation energy is higher, the mass transfer rate at the stretched nanomaterial sheet drops. The nanofluid concentration near the sheet minimizes by increasing the porosity parameter value, but the opposite behavior happens far from the sheet.
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