Abstract
Buongiorno’s nanofluid model is followed to study the bioconvection in two stretchable rotating disks with entropy generation. Similarity transformations are used to handle the problem equations for non-dimensionality. For the simulation of the modeled equations, Homotopy Analysis Method is applied. The biothermal system is explored for all the embedded parameters whose effects are shown through different graphs. There exists interesting results due to the effects of different parameters on different profiles. Radial velocity decreases with increasing stretching and magnetic field parameters. Temperature increases with Brownian motion and thermophoresis parameters. Nanoparticles concentration decreases on increasing Lewis number and thermophoresis parameter while motile gyrotactic microorganisms profile increases with increasing Lewis and Peclet numbers. Convergence of the solution is found and good agreement is obtained when the results are compared with published work.
Highlights
Buongiorno’s nanofluid model is followed to study the bioconvection in two stretchable rotating disks with entropy generation
Using the Brinkman-extended Darcy equation, Sankar et al.5 investigated the natural convection flows in a vertical annulus filled with a fluid-saturated porous medium in which the inner wall was subjected to discrete heating, outer wall was subjected to isothermally at lower temperature and the adiabatic parts were the bottom and top walls including
Sankar et al.7 attempted numerically the natural convection heat transfer in a cylindrical annular cavity with discrete heat sources on the inner wall whose purpose is to cool the chips in an effective way to prevent overheating and hot spots
Summary
Heat Fluid Flow 27(1), 221–234 (2017). 34. Li, J. K. Unsteady mixed bioconvection flow of a nanofluid between two contracting or expanding rotating discs. Flow between two stretchable rotating disks with Cattaneo-Cristov heat flux model
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