Journal
PHYSICA SCRIPTA
Volume 96, Issue 2, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1402-4896/abcef9
Keywords
rotating cone; Soret effect; Bejan number; entropy generation; thermal radiation; dufour effect; viscous dissipation
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This study examines thermo-diffusion and diffusion-thermo behaviors in mixed convection radiative flow by a rotating cone, including viscous dissipation, radiation, Dufour and Soret effects, and entropy optimization. Nonlinear PDEs are reduced to ODEs and solved using the ND-solve technique, with characteristics of different variables deliberated and computational results scrutinized. Comparative analysis shows good agreement between current and previous published results, with effects of slip parameter, mixed convection parameters, radiation parameter, and Prandtl number on velocity components, temperature, and entropy optimization discussed.
Here thermo-diffusion and diffusion-thermo behaviors in mixed convection radiative flow by a rotating cone is examined. Viscous dissipation and radiation in energy equation are present. Dufour and Soret effects are discussed. Entropy optimization is considered. Nonlinear PDEs are reduced to ODEs through appropriate variables. Nonlinear expressions are solved by ND-solve technique. Characteristics of different involved variables of concentration, entropy optimization, Bejan number, temperature and velocity are deliberated. Computational results of gradient of velocity, Nusselt number and mass transfer rate are scrutinized via tables. Comparative study of current and previous published results in literature is also made. A good agreement is noticed. Tangential and azimuthal velocity components are decreased for higher slip parameter. Azimuthal and tangential velocities have reverse effects against mixed convection parameters. Temperature has contrasting effect for larger radiation parameter and Prandtl number. Entropy optimization have similar behavior versus radiation parameter.
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