Heat transfer analysis in slip flow of hybrid nanomaterial (Ethylene Glycol + Ag + CuO) via thermal radiation and Newtonian heating

Abstract

In presented communication, the hybrid nanomaterial (Ethylene Glycol + Ag + CuO) flow by a stretched cylinder is numerically analyzed. Thermal characteristics are explored by thermal radiation and Newtonian heating. Flow analysis is performed via consideration of slip boundary and stagnation-point. Heat transport and flow expressions (PDEs) are converted into ODEs. In order to employ bvp4c (shooting method), the resulting ODEs are then reduced into first-order system of ODEs. Flow, heat transport rate, temperature and surface friction coefficient are examined graphically under influences of involved sundry parameters. Comparison is made among hybrid nanofluid (Ethylene Glycol + Ag + CuO), nanofluid (Ethylene Glycol + Ag) and basefluid (Ethylene Glycol) for physical quantities of interest. Velocity shows increasing behavior towards the higher value of nanoparticles volume fraction for silver and copper oxide, curvature, velocity ratio and velocity slip parameters. Higher estimations of nanoparticles volume fraction for silver and copper oxide, curvature, radiation and conjugate parameters cause intensification in fluid temperature. Skin friction is controlled against a higher velocity ratio parameter. Nusselt number decays with an increment in velocity ratio parameter while it boosts via higher nanoparticles volume fraction for silver and copper oxide and curvature parameter. Best performance is noticed for hybrid nanomaterial.

Keywords:

• Stagnation-point
• hybrid nanofluid (Ethylene Glycol + Ag + CuO)
• Newtonian heating
• Ethylene Glycol (basefluid)
• thermal radiation
• stretched cylinder

Disclosure statement

No potential conflict of interest was reported by the author(s).