Viscous dissipation on bioconvection flow of Walter-B nanofluid over a stretching surface with activation energy

This study examines how bioconvection is affected by viscous dissipation in Walter-B nanofluid-flow across a stretching surface while taking activation energy into account. There are several uses for viscous dissipation in many different domains. These applications span from comprehending natural phenomena to engineering and manufacturing processes. Which include material processing methods like polymer extrusion, fluid-flow optimization in high speed applications, and heat transfer augmentation in various systems. A mathematical model is developed by using stress tensor of Walter-B fluid model and Buongiorns model to analyze the dynamics of nanofluid. The only two slip mechanism namely thermophoretic and Brownian motion are discussed. Using the shooting technique bvp4c, to address the non-linear ODE. The following factors are examined: radioactivity, magnetic parameter, Soret number, Peclet number, Brownian motion parameter, Prandtl number, Dufour number, Lewis number for bioconvection, radiation parameter, and melting parameter. A graphic representation of the effects of the pertinent factors on the velocity, temperature, and concentration profiles are shown, together with the Sherwood number, Nusselt number, and skin friction coefficient. With a rise in the magnetic and viscoelastic parameters, velocity decreases. The temperature upsurges with increases in the radiation parameter, magnetic parameter, Dufour number, and Brownian motion parameter. The concentration rises with an increase in the thermophoresis parameter, but falls with an increase in the Brownian motion parameter. As the Peclet number and Bioconvection Lewis number rise, so does the field of microorganisms.