Numerical study for bioconvection in Marangoni convective flow of Cross nanofluid with convective boundary conditions

• Published in: Advances in mechanical engineering Vol. 15; no. 11
• Main Authors: Abbas, Munawar, Khan, Nargis
• Format: Journal Article
• Language: English
• Published: London, England SAGE Publications 01.11.2023; Sage Publications Ltd; SAGE Publishing
• Subjects: Boundary conditions; Convective flow; Design optimization; Energy technology; Environmental monitoring; Ethylene glycol; Flow equations; Flow profiles; Fluid flow; Heat conductivity; Heat transfer; Incompressible flow; Iron oxides; Linear functions; Magnetohydrodynamic flow; Materials engineering; Microfluidics; Microorganisms; Nanofluids; Particle deposition; Temperature distribution; Thermal conductivity; Velocity distribution; Gyrotactic microorganisms; convective boundary conditions; thermophoretic particle deposition; Marangoni convection; Cross nanofluid
• ISSN: 1687-8132; 1687-8140
• DOI: 10.1177/16878132231207625

The current study investigates incompressible, MHD flow of Cross nanofluid containing of gyrotactic microorganisms and thermophoretic particle deposition over a sheet with activation energy and variable thermal conductivity. The variable characteristic of thermal conductivity is considered as a linear function of temperature. The present study’s insights can optimize the design of nanofluid-based systems, enhance drug delivery methods, improve environmental monitoring, refine materials engineering, advance microfluidics for diagnostics, boost renewable energy technologies, and upgrade electronics cooling solutions. Moreover, this study contribution to scientific understanding will catalyze further research across disciplines, fostering innovation and progress. Cross nanofluid containing iron oxide ( F e 3 O 4 ) nanoparticles, and based fluid ethylene glycol ( C 2 H 6 O 2 ) is used. In the current study, distributions of concentration, temperature, mass, microorganisms, and flow are examined in the presence of nanofluid while also accounting for thermophoretic particle deposition and a heat source. The proposed flow equations are transmuted into ODEs by employing the suitable similarity variables. RKF-45th approach is used to evaluate the reduced equations. Graphs are used to determine the effects of important factors on thermal, microorganism, concentration, and flow profiles. With a rise in the Marangoni ratio parameter, the velocity distribution is enhanced, whereas the temperature distribution exhibit inverse behavior.