Publicou 12 edições por ano
ISSN Imprimir: 1091-028X
ISSN On-line: 1934-0508
Indexed in
STEFAN BLOWING, NAVIER SLIP, AND RADIATION EFFECTS ON THERMO-SOLUTAL CONVECTION FROM A SPINNING CONE IN AN ANISOTROPIC POROUS MEDIUM
RESUMO
Thermal radiation features in many high-temperature materials processing operations. To evaluate the influence of radiative flux on spin coating systems, we consider herein the thermo-solutal (coupled heat and mass transfer) in steady laminar boundary layer natural convection flow from a rotating permeable vertical cone to an anisotropic Darcian porous medium. Surface slip effects are also included in the model presented. The conservation equations are rendered into self-similar form and solved as an ordinary differential two-point boundary value problem with surface and free stream boundary conditions using MAPLE 17 software. The transport phenomena are observed to be controlled by 10 parameters, namely, primary and secondary Darcy numbers (Dax and Daθ), rotational (spin) parameter (NR), velocity slip parameter (a), suction/injection parameter (S), thermal slip parameter (b), mass slip parameter (c), buoyancy ratio parameter (N), and conduction-radiation parameter (Rc). Tangential velocity and temperature are observed to be enhanced with greater momentum slip, whereas swirl velocity and concentration are reduced. Increasing swirl Darcy number strongly accelerates both the tangential and swirl flow and also heats the regime, whereas it decreases concentrations. Conversely, a rise in tangential Darcy number accelerates only the tangential flow and decelerates swirl flow, simultaneously depressing temperatures and concentrations. Increasing thermal slip accelerates the swirl flow and boosts concentration but serves to retard the tangential flow and decrease temperatures. With higher radiation contribution (lower Rc values), temperatures are elevated and concentrations are reduced. Verification of the MAPLE 17 solutions is achieved using a Keller box finite difference method (Tables 1 and 2). A number of interesting features in the thermo-fluid and species diffusion characteristics are addressed.
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Zohra F.T., Uddin M.J., Ismail A.I.M., Anwar Bég O., Kadir A., Anisotropic slip magneto-bioconvection flow from a rotating cone to a nanofluid with Stefan blowing effects, Chinese Journal of Physics, 56, 1, 2018. Crossref
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Nield Donald A., Bejan Adrian, Double-Diffusive Convection, in Convection in Porous Media, 2017. Crossref
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Gnaneswara Reddy M., Padma P., Sudha Rani M. V. V. N. L., Non-linear Thermal Radiative Analysis on Hydromagnetic Nanofluid Transport Through a Rotating Cone, International Journal of Applied and Computational Mathematics, 5, 3, 2019. Crossref
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Alhussain Ziyad A., Renuka A., Muthtamilselvan M., A magneto-bioconvective and thermal conductivity enhancement in nanofluid flow containing gyrotactic microorganism, Case Studies in Thermal Engineering, 23, 2021. Crossref
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Waqas Hassan, Naseem Rabia, Muhammad Taseer, Farooq Umar, Bioconvection flow of Casson nanofluid by rotating disk with motile microorganisms, Journal of Materials Research and Technology, 13, 2021. Crossref
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Asifa , Anwar Talha, Kumam Poom, Shah Zahir, Sitthithakerngkiet Kanokwan, Significance of Shape Factor in Heat Transfer Performance of Molybdenum-Disulfide Nanofluid in Multiple Flow Situations; A Comparative Fractional Study, Molecules, 26, 12, 2021. Crossref
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Sreenivasulu P, Poornima T, Malleswari B, Reddy N Bhaskar, Souayeh Basma, Internal energy activation stimulus on magneto-bioconvective Powell-Eyring nanofluid containing gyrotactic microorganisms under active/passive nanoparticles flux, Physica Scripta, 96, 5, 2021. Crossref