Study of homogeneous–heterogeneous reactions in bioconvection stagnation pointslip flow of Walter's-B nanofluid with nonlinear thermal radiation and activation energy

Abstract

The study nano-materials have intended the attention of scientist due towide range of potential applications in various thermal engineering systems and many industrial processes. The novel applications associated to the nanoparticles involve theenergy production, chemical reactions, bio-medical applications, heating/cooling processes, metrology, vehicle cooling, bioengineering, biochemistry, shipping, nuclear reactorsand many more. Owing to such motivations and fundamental applications in mind, this analysis deals with the slip flow of Walter's-B nanofluid containing the motile microorganisms with applications of homogeneous–heterogeneous reactions. The problem is further modified by incorporating theaspects thermal performances with variables impact and activation energy mechanism. A flow problem modeled in terms oflocally similar differential equations is numerically simulated with shooting technique facilitated by MATLAB computational software. The aspects of important parameters on velocity, nanofluid temperature, nanofluid concentration and motile microorganism profile are elaborated in with help of several graphs and numerical tables. A lower change in velocity is observed for local Weissenberg number and second slip parameter. It is observed that the concentration profile decays for heterogeneous reaction parameter but reverse trend is noticed for homogenous reaction parameter.