Open AccessInvestigation of mixed convection magnetized Casson nanomaterial flow with activation energy and gyrotactic microorganisms
Author(s) -
Fazal Haq,
Muzher Saleem,
M. Ijaz Khan
Publication year - 2021
Publication title -
journal of physics communications
Language(s) - English
Resource type - Journals
ISSN - 2399-6528
DOI - 10.1088/2399-6528/ac3889
Subject(s) - sherwood number , péclet number , prandtl number , mechanics , lewis number , thermophoresis , hartmann number , nanofluid , damköhler numbers , combined forced and natural convection , eckert number , thermodynamics , drag , boundary layer , darcy number , schmidt number , mass transfer , materials science , natural convection , chemistry , convection , heat transfer , rayleigh number , nusselt number , physics , turbulence , reynolds number
Present article addresses mixed convection magnetohydrodynamic Casson nanomaterial flow by stretchable cylinder. The effects of thermal, solutal and motile density stratifications at the boundary of the surface are accounted. Flow governing expressions are acquired considering aspects of permeability, thermal radiation, chemical reaction, viscous dissipation and activation energy. The obtained flow model is made dimensionless through transformations and then tackled by NDsolve code in Mathematica. Physical impacts of sundry variables on nanomaterial velocity, temperature distribution, volume fraction of microorganisms and mass concentration is investigated through plots. Furthermore, quantities of engineering interest like surface drag force, heat transfer rate, density number and Sherwood number are computed and analyzed. We observed that fluid velocity diminishes for higher curvature variable, Casson fluid material variable, Hartmann number and permeability parameter. Fluid temperature has a direct relation with Eckert number, thermophoresis variable, Brownian dispersal parameter, Prandtl number and Hartmann number. Volume fraction of gyrotactic microorganisms is decreasing function of bioconvection Lewis number, stratification parameter and bioconvection Peclet number. Detailed observations are itemized at the end.