Dynamics of radiative-reactive Walters-b fluid due to mixed convection conveying gyrotactic microorganisms, tiny particles experience haphazard motion, thermo-migration, and Lorentz force

2021 ◽  
Author(s):  
Abderrahim Wakif ◽  
Isaac Lare Animasaun ◽  
Umair Khan ◽  
Nehad Ali Shah ◽  
Thirupathi Thumma
Keyword(s):  
Mixed Convection ◽  
Lorentz Force ◽  
Gyrotactic Microorganisms ◽  
Walters B Fluid

scholarly journals Mixed convection in gravity-driven thin film non-Newtonian nanofluids flow with gyrotactic microorganisms

2017 ◽  
Vol 7 ◽  
pp. 4033-4049 ◽  
Author(s):  
Noor Saeed Khan ◽  
Taza Gul ◽  
Muhammad Altaf Khan ◽  
Ebenezer Bonyah ◽  
Saeed Islam
Keyword(s):  
Thin Film ◽  
Mixed Convection ◽  
Gyrotactic Microorganisms ◽  
Gravity Driven

scholarly journals Investigation of mixed convection magnetized Casson nanomaterial flow with activation energy and gyrotactic microorganisms

2021 ◽  
Author(s):  
Fazal Haq ◽  
Muzher Saleem ◽  
Muhammad Ijaz Khan
Keyword(s):  
Activation Energy ◽  
Mixed Convection ◽  
Hartmann Number ◽  
Volume Fraction ◽  
Fluid Velocity ◽  
Lewis Number ◽  
Fluid Temperature ◽  
Surface Drag ◽  
Radiation Chemical ◽  
Gyrotactic Microorganisms

Abstract 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.

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