Journal
MODERN PHYSICS LETTERS B
Volume 35, Issue 12, Pages -Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S021798492150202X
Keywords
Bioconvection flow; Sutterby nanofluid; rotating disk; numerical scheme
Funding
- National Natural Science Foundation of China [11971142, 11871202, 61673169, 11701176, 11626101, 11601485]
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This study focuses on exploring the thermal properties of Sutterby nanofluid in bioconvection flow over rotating and stretchable disks. By observing the effects of various physical parameters, enhancements in velocity, temperature, concentration, and motile microorganism are noted. It is observed that axial and tangential velocity components decrease with Reynolds number and buoyancy ratio parameter, while nanofluid concentration improves with activation energy and concentration Biot number.
Owing to the growing interest of bioconvection flow of nanomaterials, many investigations on this topic have been performed, especially in this decade. The bioconvection flow of nanofluid includes some novel significance in era of biotechnology and bio-engineering like bio-fuels, microbial enhanced oil recovery, enzymes, pharmaceutical applications, petroleum engineering, etc. The current analysis aims to explore the various thermal properties of Sutterby nanofluid over rotating and stretchable disks with external consequences of variable thermal conductivity, heat absorption/generation consequences, activation energy and thermal radiation. The considered flow problem is changed into dimensionless form with convenient variables. The numerical structure for the obtained non-dimensional equations is numerically accessed with built-in shooting technique. The consequences of various physical parameters are observed for enhancement of velocity, temperature, concentration and motile microorganism. It is noted that both axial and tangential velocity components decrease with Reynolds number and buoyancy ratio parameter. The nanofluid concentration improves with activation energy and concentration Biot number. Moreover, an improved microorganisms profile is noticed with microorganism Biot number and bioconvection Rayleigh number.
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