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

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.

Cattaneo–Christov heat flux model for nanofluid flow over a curved stretching sheet: An application of Stefan blowing

“…Prasannakumara 18 deliberated the Maxwell nanoliquid flow on a stretching sheet utilizing the Buongiorno model. Using the abovementioned model, Jyothi et al 19 educed the Casson hybrid nanomaterial liquid stream past a spinning disk with bioconvection. Shoaib et al 20 evaluated the ferrofluid flow on a stretchy surface by means of the Buongiorno model and Levenberg–Marquardt algorithm.…”

Analytical Approach for a Heat Transfer Process through Nanofluid over an Irregular Porous Radially Moving Sheet by Employing KKL Correlation with Magnetic and Radiation Effects: Applications to Thermal System

“…Zaib et al [ 21 ] investigated the slip impacts on Casson fluid flow past a vertical plate immersed in Darcy–Brinkman medium with mixed convection and presented double solutions for slip parameters. Recently, Jyothi et al [ 22 ] utilized the model of modified Buongiorno to investigate the effect of activation energy on the flow of Casson fluid induced by hybrid nanofluid past a downward/upward-moving rotatable disk.…”

Interaction of radiation and chemical reaction on Walters' B fluid over a medium porosity of a vertical stretching surface

“…Hayat et al 8,9 reported that there is a boost in temperature and surface heat transfer at a strengthened impact of Newtonian heating while Gowda et al 10 further buttressed that the Newtonian heating parameter has a substantial impact on Newtonian liquid and enhances heat transfer. Oldroyd-B fluids via a stretchable surface was carried out by Sarada et al 11 and the result indicated for the rising levels of the Brownian motion and thermophoresis parameters that the Jeffery liquid outperforms the Oldroyd-B liquid in terms of fluid phase heat transfer while the rate of heat transmission improves as values of the Brownian motion varied by Jyothi et al 12 on the impact of activation energy and gyrotactic microorganisms on the flow of Casson hybrid nanofluid through a rotating moving disk. Maryiam et al 13 revealed a direct relationship via axial velocity as well as temperature distributions through viscoelastic parameter.…”