Thermo-solutal impact of MHD hybrid nanofluid flow containing gyrotactic microorganisms over an inclined cylinder
Chandrakanta Parida, Debashis Mohanty, Ganeswar Mahanta, Sachin Shaw
Abstract
This research focuses on the significance of incorporating gold and multi-walled carbon nanotube nanoparticles into human blood, particularly in the context of magnetohydrodynamics (MHD) flow, influenced by gyrotactic microorganisms near a stretching cylinder. The study employs similarity transformations to convert the system's partial differential equations (PDEs) into dimensionless ordinary differential equations (ODEs), which are then solved using MATLAB's bvp4c solver. The primary objective is to assess how nanoparticle size affects temperature, velocity, concentration, and microorganism distribution, under the influence of thermal radiation and heat source-sink. The study also highlights the roles of the Peclet number and bioconvection in microorganism behavior. Comparative graphs for general and hybrid nanofluids, along with regression analysis, offer detailed insights into skin friction, Nusselt number, and Sherwood number. This study uncovers several important findings on hybrid nanofluids containing MWCNT and Au nanoparticles in MHD flows. It was found that increasing the magnetic field strength reduces fluid velocity, while thermal radiation significantly boosts temperature. Additionally, concentration levels rise with activation energy and decrease with chemical reaction intensity. These insights highlight how manipulating these parameters can effectively control fluid behavior and enhance heat transfer in various applications.