A homogeneous-heterogeneous reaction model for heat fluid flow in the stagnation region of a plane surface. (October 2017)

• Record Type: Journal Article
• Authors: Xu, Hang
• Is Part Of: International communications in heat and mass transfer. Volume 87(2017)
• Page Start: 112
• Page End: 117
• Publication Date: 2017-10
• Subjects: Stagnation point -- Homogeneous-heterogeneous reaction -- Heat transfer -- Multiple solutions; Heat -- Transmission -- Periodicals; Mass transfer -- Periodicals; Chaleur -- Transmission -- Périodiques; Transfert de masse -- Périodiques; Heat -- Transmission; Mass transfer; Periodicals; 621.4022
• DOI: 10.1016/j.icheatmasstransfer.2017.07.012
• Languages: English
• ISSNs: 0735-1933

Abstract

Abstract: A simple model of chemical reactions for heat fluid flow in the stagnation-point region of a flat sheet is constructed. It is assumed that the heterogeneous reactions taking place on the wall surface are given by isothermal cubic autocatalator kinetics and the homogeneous reactions occurring in the ambient fluid are governing by first order kinetics. The steady-state problem is then reduced to a set of coupled ordinary differential equations via similarity reduction in the case that the diffusion coefficients of reactant and autocatalyst are equal. The multiple solutions of this system are obtained numerically with the help of hysteresis bifurcations.