Bioconvective Flow of Tangent Hyperbolic Hybrid Nanofluid Through Different Geometries with Temperature and Concentration Dependent Heat Source: Marangoni Convection

This research has applications in targeted drug delivery in biomedical engineering, precision manufacturing of electronic devices and nanostructured materials in nanotechnology, and efficient thermal management systems in electronics, automotive, and aerospace industries. Understanding Marangoni convection in bioconvective flows not only advances scientific knowledge but also fuels innovations in biotechnology, materials science, and thermal engineering, leading to diverse realworld applications. This study demonstrates how the Marangoni effect affects the bio convective flow of tangent hyperbolic hybrid nanofluid over three different geometries (cone, plate, and wedge) in the presence of gyrotactic microorganisms with a heat source. It also examined how Marangoni convection is affected by heat radiation, mixed convection, and binary chemical reactions. Surface tension caused by the thermal and concentration gradient causes the flow to be compelled. With the use of an ethylene glycol (EG) foundation fluid, a copper oxide (Cuo) and titanium dioxide (TiO2) mixture, and a tangent hyperbolic hybrid combination nanofluid, this work intends to examine the viscoelastic components of the thermal transferring process. When certain crucial parameters are taken into consideration, the proposed physical phenomenon can be mathematically described in terms of nonlinear PDEs. By using the proper similarity variables, the governing equations are converted into a system of related nonlinear ODEs (ordinary differential equations). The Homotopy analysis method (HAM) is then used to solve an intricate set of highly nonlinear equations that result from this. By increasing the Weissenberg number and volume percentage of nanoparticles, the fluid velocity is decreased. The velocity, Sherwood number, Nusselt number and density of motile microorganisms, and all rise as the Marangoni convection parameter is raised, but thermal, concentration, and microorganism profiles exhibit an opposite behavior.