Analysis of nonlinear convection-radiation in chemically reactive Oldroyd-B nanoliquid configured by a stretching surface with Robin conditions: applications in nano-coating manufacturing

Nasir, M; Waqas, M; Beg, OA; Zamri, N

Abstract

Motivated by emerging high-temperature manufacturing processes deploying nanopolymeric coatings, the present communication studies nonlinear thermally radiative OldroydB viscoelastic nanoliquid stagnant-point flow from a heated vertical stretching permeable
surface. Robin (mixed derivative) conditions are utilized to better represent coating fabrication
conditions. The nanoliquid analysis is based on Buongiorno's two-component model which
elaborates Brownian movement and thermophoretic attributes. Nonlinear buoyancy force and
thermal radiation formulations are included. Chemical reaction (constructive and destructive)
is also considered since coating synthesis often features reactive transport phenomena. Via a
similarity approach, an ordinary differential equation model is derived from the primitive
partial differential boundary value problem. Analytical solutions are achieved employing
homotopy analysis scheme. The influence of emerging dimensionless quantities on transport
characteristics is comprehensively elaborated with appropriate data. The obtained analytical
outcomes are compared with available limiting studies and good correlation is achieved. The
computations show that the velocity profile is diminished with increasing relaxation parameter
whereas it is enhanced when retardation parameter is increased. Larger thermophoresis parameter induces temperature and concentration enhancement. The heat and mass transfer
rates at the wall are increased with an increment in temperature ratio and first order chemical
reaction parameters while contrary effects are observed for larger thermophoresis, fluid
relaxation and Brownian motion parameters. The simulations find applications in stagnation
nano-polymeric coating of micromachines, robotic components and sensors

Citation

Nasir, M., Waqas, M., Beg, O., & Zamri, N. (2022). Analysis of nonlinear convection-radiation in chemically reactive Oldroyd-B nanoliquid configured by a stretching surface with Robin conditions: applications in nano-coating manufacturing. Micromachines, 13(12), https://doi.org/10.3390/mi13122196

• Journal Article Type: Article
• Acceptance Date: Dec 8, 2022
• Online Publication Date: Dec 11, 2022
• Publication Date: Dec 11, 2022
• Deposit Date: Jan 9, 2023
• Publicly Available Date: Jan 9, 2023
• Journal: Micromachines
• Publisher: MDPI
• Volume: 13
• Issue: 12
• DOI: https://doi.org/10.3390/mi13122196
• Publisher URL: https://doi.org/10.3390/mi13122196