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Impact of activation energy and gyrotactic microorganisms on flow of Casson hybrid nanofluid over a rotating moving disk

Publication Type : Journal Article

Source : Heat Transfer Volume 50 Issue 6 Pages 5380-5399, 2021

Url : https://onlinelibrary.wiley.com/doi/abs/10.1002/htj.22129

Campus : Bengaluru

School : School of Engineering

Department : Mathematics

Year : 2021

Abstract : Many models of various non-Newtonian fluid flows for different geometries are available for analyzing the mass and heat transfer. Nevertheless, for researchers, it is challenging to choose the most suitable model for a specific geometry. Here, we have adopted a modified Buongiorno model to explore the impact of activation energy on the Casson hybrid nanofluid flow over an upward/downward-moving rotating disk filled with the gyrotactic microorganisms. Moreover, the external magnetic field can establish the magnetic effect, which normalizes the features of heat, mass transfer, and fluid flow. Here, we used silver and copper as nanoparticles suspended in human blood as the carrier fluid. The modeled partial differential equations are converted to ordinary differential equations by opting suitable similarity variables. The numerical solutions of these reduced equations are attained by means of Runge–Kutta–Fehlberg fourth-fifth-order method by adopting a shooting scheme. An investigation of the attained outcomes reveals that the flow field is affected appreciably by the activation energy, bioconvection, and magnetic effect. Peclet and concentration difference numbers diminish the microorganism's profile. A rise in values of the Brownian motion parameter leads to an increase in the rate of heat transfer.

Cite this Research Publication : Anigere Marikempaiah Jyothi, Rangaswamy Naveen Kumar, Ramanahalli Jayadevamurthy Punith Gowda, Yarranna Veeranna, Ballajja Chandrappa Prasannakumara, "Impact of activation energy and gyrotactic microorganisms on flow of Casson hybrid nanofluid over a rotating moving disk", Heat Transfer Volume 50 Issue 6 Pages 5380-5399, 2021

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