Reactive Heat Transfer in a Vertical Channel With Variable Transport Properties

The flow and thermal characteristics of a viscous fluid undergoing a first‐order chemical reaction, while either absorbing heat or generating heat internally, as it flows vertically through a channel are discussed in this paper. Assumed all fluid properties (viscosity, thermal conductivity, etc.) to depend on temperature and the channel walls are held at constant but different temperatures. In order to obtain solutions to the three‐dimensional nonlinear coupled dimensionless equations arising from the problem, the author proposed an analytical method. The non dimensional coupled nonlinear ordinary differential equations are solved analytically by the method of perturbation scheme. Using MATLAB, the distributions of velocity and temperature are presented graphically, and their variations with respect to each parameter are studied numerically. It is observed that the variation of thermal properties and chemical reactions has a remarkable effect on the velocity and temperature distributions in the case of viscous flow through a vertical channel.