Emphasis on unsteady dynamics of bioconvective hybrid nanofluid flow over an upward–downward moving rotating disk

Punith Gowda Ramanahalli Jayadevamurthy; Naveen kumar Rangaswamy; Ballajja Chandrappa Prasannakumara; Kottakkaran Sooppy Nisar

doi:10.1002/num.22680

journal article Nov 27, 2020

Emphasis on unsteady dynamics of bioconvective hybrid nanofluid flow over an upward–downward moving rotating disk

Punith Gowda Ramanahalli Jayadevamurthy Naveen kumar Rangaswamy Ballajja Chandrappa Prasannakumara

Kottakkaran Sooppy Nisar

Numerical Methods for Partial Differential Equations Vol. 40 No. 1 · Wiley

View at Publisher Save 10.1002/num.22680

Abstract

AbstractThe fluid flow between the rotating disk has wide range of applications and are used in medical equipment's, car brake system, gas turbines, manufacturing of glass and plastic films. Inspired from these applications, we scrutinized the behavior of an axisymmetric expansion–contraction rotating disk on three‐dimensional flow of hybrid nanoparticles in the presence of microorganisms. Here, we considered copper and silica nanoparticles suspended in base fluid water. It is known that, the inequality of concentration in chemically reactive species affecting mass transfer mechanism and activation energy plays an important role in increasing the production speed of chemical reactions. Hence, the Arrhenius activation energy and chemical reaction effects are added in the mass equation. Autorelated transformations were adopted to reduce PDE's to ODE's and then, we utilized the RKF‐45 by adopting shooting skill to solve reduced ODE's. The analysis of rate of heat and mass transfer is done through graphs. Furthermore, change in velocity, thermal and concentration profiles for various nondimensional parameters are deliberated briefly by using suitable plots. Result reveals that rise in wall expansion/contraction parameter supports up the velocity gradients, higher the values of bioconvection Peclet number and concentration difference parameter declines the microorganism profile and Nusselt number decreases for rise in values of thermophoresis parameter.

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Details

Published: Nov 27, 2020
Vol/Issue: 40(1)
License: View

Authors

P

Punith Gowda Ramanahalli Jayadevamurthy

Department of Studies and Research in Mathematics Davangere University Davangere Karnataka India

N

Naveen kumar Rangaswamy

Department of Studies and Research in Mathematics Davangere University Davangere Karnataka India

B

Ballajja Chandrappa Prasannakumara

Department of Studies and Research in Mathematics Davangere University Davangere Karnataka India

K

Kottakkaran Sooppy Nisar

Department of Mathematics, College of Arts and Sciences Prince Sattam bin Abdulaziz University Wadi Aldawaser Saudi Arabia

Cite This Article

Punith Gowda Ramanahalli Jayadevamurthy, Naveen kumar Rangaswamy, Ballajja Chandrappa Prasannakumara, et al. (2020). Emphasis on unsteady dynamics of bioconvective hybrid nanofluid flow over an upward–downward moving rotating disk. Numerical Methods for Partial Differential Equations, 40(1). https://doi.org/10.1002/num.22680

Emphasis on unsteady dynamics of bioconvective hybrid nanofluid flow over an upward–downward moving rotating disk

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