Computation of von Karman thermo-solutal swirling flow of a nanofluid over a rotating disk to a non-Darcian porous medium with hydrodynamic/thermal slip
نویسندگان
چکیده
Motivated by recent trends in spin coating operations chemical engineering which are exploiting nanomaterials, the present article investigates theoretically and numerically steady mass heat transfer von Karman swirling slip flow of a nanofluid from rotating disk touching to homogenous non-Darcy porous medium. The medium is simulated with Darcy–Forchheimer–Brinkman model. To track thermophoresis Brownian movement nanoparticles, Buongiorno nanoscale model used. similarity variables deployed transform partial differential conservation equations into system highly coupled, nonlinear, dimensionless ordinary (ODE's). These boundary layer equations, i. e., continuity, momentum, energy nanoparticle concentration (volume fraction), solved bvp4c shooting quadrature MATLAB. Validation earlier studies included. Further verification an Adams–Moulton predictor–corrector method conducted. influence velocity (momentum) coefficient, thermal slip, Darcian bulk drag parameter (inverse permeability), Forchheimer inertial parameter, motion m Schmidt number, Prandtl number on radial, tangential (azimuthal) axial components, temperature visualized graphically. distributions for skin friction component Nusselt also computed. Radial, velocities reduced increasing hydrodynamic wall whereas they elevated permeability (decreasing inverse Darcy parameter). Thermal layers markedly modified increment parameters .
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ژورنال
عنوان ژورنال: Journal of Thermal Analysis and Calorimetry
سال: 2021
ISSN: ['1388-6150', '1572-8943', '1588-2926']
DOI: https://doi.org/10.1007/s10973-021-11126-1