Reviewer
000-515-663
Atul Kumar Ray
Assistant Professor Department: Mathematics and Computing Certificate Views : 644 Followers : 0| Name: | Atul Kumar Ray |
| Designation: | Assistant Professor |
| Department: | Mathematics and Computing |
| Research Area: | Applied Mathematics and Fluid Dynamics |
| Organization: | Madhav Institute of Technology and Science Gwalior |
| Contact: | Contact Reviewer |
| Qualification: | PhD |
| About: | Purpose – This paper aims to numerically investigate the two-dimensional unsteady laminar magnetohydrodynamic bioconvection flow and heat transfer of an electrically conducting non-Newtonian Casson thin film with uniform thickness over a horizontal elastic sheet emerging from a slit in the presence of viscous dissipation. The composite effects of variable heat, mass, nanoparticle volume fraction and gyrotactic micro-organism flux are considered as is hydrodynamic (wall) slip. The Buongiorno nanoscale model is deployed which features Brownian motion and thermophoresis effects. The model studies the manufacturing fluid dynamics of smart magnetic bio-nano-polymer coatings. Design/methodology/approach – The coupled non-linear partial differential boundary-layer equations governing the flow, heat and nano-particle and micro-organism mass transfer are reduced to a set of coupled non-dimensional equations using the appropriate transformations and then solved as an nonlinear boundary value problem with the semi-numerical Liao homotopy analysis method (HAM).Validation with a generalized differential quadrature (GDQ) numerical technique is included. Findings – An increase in velocity slip results in a significant decrement in skin friction coefficient and Sherwood number, whereas it generates a substantial enhancement in Nusselt number and motile microorganism number density. The computations reveal that the bioconvection Schmidt number decreases the micro-organism concentration and boundary-layer thickness which is attributable to a rise in viscous diffusion rate. Increasing bioconvection Péclet number substantially elevates the temperatures in the regime thermal boundary layer thickness, nanoparticle concentration values and nano-particle species boundary layer thickness. The computations demonstrate the excellent versatility of HAM and GDQ in solving nonlinear multi-physical nano-bioconvection flows in thermal sciences and furthermore are relevant to applic |
| Status: |
Journal
| Author: | Atul Kumar Ray, B Vasu, Anwar Bég, Rama Subba Reddy Gorla, PVSN Murthy |
| Title: | Magneto-Bioconvection flow of a Casson thin film with nanoparticles over an unsteady stretching sheet: HAM and GDQ Computation |
| Publication Year: ISSN: Volume: Issue: |
2019 0961-5539 29 11 |
| Indexing: | SCOPUS, SCI-E, UGC-CARE, ABCD-Index, |
| Visit Paper: | Click here |
| More Details | Click here |
