Heterogeneous-homogeneous reactions and melting heat transfer effects in flow with carbon nanotubes

Abstract

The communication here addresses the impact of heterogeneous-homogeneous reactions in boundary layer flow of nanofluid saturating porous medium. The stretching cylinder caused the flow in presence of melting heat transfer. Analysis for single-wall carbon nanotubes (SWNTs) and multi-wall carbon nanotubes (MWNTs) is explored. Water is taken as the base fluid. Auto catalyst and reactant both have same diffusion coefficient. Boundary layer problems are computed for the velocity, temperature and concentration. Resulting differential systems are evaluated for the convergent series solutions. Outcomes for the velocity f′(η), temperature θ(η) and concentration φ(η) are examined. The skin friction coefficient f″(0) and Nusselt number θ′(0) are also explored. It is found that temperature θ(η) and velocity f′(η) have reverse effects for melting parameter M. Concentration distribution φ(η) is decreasing function of homogeneous reaction parameter K while opposite influence of heterogeneous reaction appears. Maximum heat transfer and minimum thermal resistance are noticed for MWCNTs than SWNTs.