Numerical study of magnetic-bio-nano-polymer solar cell coating manufacturing flow

Beg, OA ORCID:, Kuharat, S, Aneja, M, Sharma, S and Babaie, M ORCID: 2018, Numerical study of magnetic-bio-nano-polymer solar cell coating manufacturing flow , in: International Conference on Innovative Applied Energy (IAPE’19), 14-15 March 2019, St Cross College, University of Oxford, UK.

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Novel bio-nano-electro-conductive polymers are currently being considered for third generation organic solar coatings which combine biological micro-organisms, nanofluids and magnetic polymer properties. Motivated by these developments, in this poster, we describe a mathematical model for simulating the manufacturing fluid dynamics of such materials. Incompressible, steady-state, boundary layer magnetobioconvection of a nanofluid (containing motile gyrotactic micro-organisms) over a nonlinear inclined stretching sheet subjected to non-uniform magnetic field is studied theoretically and numerically. Buongiorno’s two-component nanofluid model (developed at MIT) is deployed with the Oberbeck-Boussinesq approximation. Ohmic dissipation (Joule heating) is included. The governing nonlinear partial differential equations are reduced to a system of ordinary differential equations and appropriate similarity transformations. The normalized system of equations with associated boundary conditions features a number of important dimensionless parameters including magnetohydrodynamic body force parameter (M), sheet inclination (δ), Brownian motion nanoscale parameter (Nb), thermophoresis nanoscale parameter (Nt), Richardson number (Ri=GrRe2, where Gr is thermal Grashof number and Re is Reynolds number), buoyancy ratio parameter (Nr), Eckert (viscous dissipation) number (Ec), bioconvection Rayleigh number (Rb), Lewis number (Le), bioconvection Lewis number (Lb), Péclet number (Pe), nonlinear stretching parameter (n) are solved with a variational Finite Element Method (FEM). Validation is conducted with earlier published studies for the case of non-magnetic stretching sheet nanofluid flow without bioconvection. The response of nondimensional velocity, temperature, nanoparticle concentration, motile micro-organism density function, local skin friction coefficient, Nusselt number, Sherwood number, wall motile density gradient function to variation in physically pertinent values of selected control parameters (representative of real solar bio-nano-magnetic materials manufacturing systems) are studied in detail. Interesting features of the flow dynamics are elaborated of relevance to the performance of bio-magneto-nano polymeric solar coating

Item Type: Conference or Workshop Item (Poster)
Schools: Schools > School of Computing, Science and Engineering
Depositing User: OA Beg
Date Deposited: 29 Oct 2018 14:39
Last Modified: 16 Feb 2022 00:06

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