Abstract
This work addresses 3D bioconvective viscoelastic nanofluid flow across a heated Riga surface with nonlinear radiation, swimming microorganisms, and nanoparticles. The nanoparticles are tested with zero (passive) and nonzero (active) mass flux states along with the effect of thermophoresis and Brownian motion. The physical system is visualized via high linearity PDE systems and nondimensionalized to high linearity ordinary differential systems. The converted ordinary differential systems are solved with the aid of the homotopy analytic method (HAM). Several valuable and appropriate characteristics of related profiles are presented graphically and discussed in detail. Results of interest such as the modified Hartmann number, mixed convection parameter, bioconvection Rayleigh number, and Brownian motion parameter are discussed in terms of various profiles. The numerical coding is validated with earlier reports, and excellent agreement is observed. The microorganisms are utilized to improve the thermal conductivity of nanofluid, and this mechanism has more utilization in the oil refinery process.
Highlights
“Bioconvection” is known to be the convective movement within sight of swimming microorganisms
The system, which consists of a gyrotactic microorganism, induces one of the exciting characters in heat transfer that is “stability.” The reason is that nanofluids that have higher stability tend to improve the thermal efficiency of the heat exchanger
The surface is expanding in all three directions, namely, x, y, and z: It is assumed that nanoparticles do not influence the swimming microorganism; the nanoparticles are assumed to be stable in the fluid layer
Summary
“Bioconvection” is known to be the convective movement within sight of swimming microorganisms. Mixed convective nanofluid flowed a Riga plate is studied numerically and analytically in [4]. Influence on viscous dissipation and thermal radiation of nanofluid flow between the Riga plate is explored numerically [6]. They have used carbon nanotubes as the nanoparticle, and it is shown that by varying the radiation parameter, the local heat transfer rate elevates. By considering the earlier reports, it is concluded that no studies were found to analyze the bioconvection of viscoelastic nanofluid on a 3D Riga surface with a comparison of active and passive control. The present study explores the 3D viscoelastic nanofluid flow across the heated Riga surface with nonlinear radiation and heat generation/absorption effects. The relevant research is applied to multiple engineering streams like bioengineering, chemical, nuclear, thermal, and mechanical
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
