AUTHOR=Nadeem Muhammad , Siddique Imran , Ali Rifaqat , Riahi Mohamed Kamel , Mousa Abd Allah A. , Khan Ilyas , Hafeez Hafiza Mariyam , Azam Muhammad 

TITLE=Dynamics of Non-Newtonian Tangent Hyperbolic Liquids Conveying Tiny Particles on Objects with Variable Thickness when Lorentz Force and Thermal Radiation are Significant

JOURNAL=Frontiers in Physics

VOLUME=Volume 10 - 2022

YEAR=2022

URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2022.917677

DOI=10.3389/fphy.2022.917677

ISSN=2296-424X

ABSTRACT=The present investigation focuses on boundary layer (BL) heat, flow, and mass transfer of MHD tangent hyperbolic nanofluid via a thinIneedle under the impacts of activation energy, non-constant thermal conductivity, heat source, and nonlinear thermal radiation. In the description of nanofluid, the significant features of Brownian motion and thermophoresis have been included. Adopting appropriate transformations to the given problem specified by the set of partial differential equations (PDEs) yields the dimensionless form of ordinary differential equations (ODEs). After that, these obtained ODEs are calculated numerically via MATLAB bvp4c. A comparative analysis with previous findings is conducted. Physical parameters' impact on flow rate, heat, and concentration is exhibited and explained in depth. The main findings of this study are that flow patterns reduce as the magnetic parameter and the Weissenberg number grow. Higher values of Brownian motion, heat source/sink, nonlinear radiation, and thermophoretic parameter improve the thermal profile. Moreover, the rate of heat transfer for the variable property case is significantly improved. Concentration profiles reduce as the thermophoresis parameter and chemical reaction parameter grow but improve as the activation energy and Brownian motion parameter rise.