Differential transformation method for analysis of nonlinear flow and mass transfer through a channel filled with a porous medium
1Department of Mechanical Engineering, Esfarayen University of Technology, Esfarayen, North Khorasan, Iran
2Young Researchers and Elite Club, Najafabad Branch, Islamic Azad University, Najafabad,Iran
3Department of Mechanical Engineering, Babol University of Technology, Babol, Iran
J Ther Eng 2020; 6(2): 24-40 DOI: 10.18186/thermal.726098
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Abstract

In this paper, mass transfer and chemical reaction effects on laminar viscous flow through a porous channel with moving or stationary walls are studied. The governing partial differential equations of the physical problem are transformed into a set of coupled nonlinear ordinary differential equations using similarity transformation. The coupled nonlinear ordinary differential equations are solved using differential transform method (DTM). The results obtained through the approximate analytical method are compared with the results of numerical method and high accuracy of the present approximate analytical solution is observed. The valuable achievement of the present study is imbedding a precise and efficient analytical method for the flow of viscous fluid in a porous channel with a chemical reaction. Also, the effects of some pertinent parameters such as Reynolds number, Darcy number, Schmidt number and suction/injection parameter on velocity components, heat transfer, concentration, and Sherwood distribution are presented in this work.