Thermal and mass transfer aspects of MHD flow across an exponentially stretched sheet with chemical reaction

Abstract

This investigation deals with the two-dimensional steady problem incorporating the magneto hydrodynamic effect with three distinct boundary layer streams of fluid across an exponentially stretched sheet under the influence of thermal radiation and chemical reactions. The concurrent flow model also accounts for the effect of Thermophoresis and Brownian movement, caused by temperature and concentration gradients between two boundaries, respectively. By using suitable similarity transformation variables, the nonlinear systems of governing PDEs are transformed into a system of nonlinear ODEs. The findings, obtained by using the Bvp4c strategy, are analysed and depicted graphically and through tables. Furthermore, the Nusselt number, Sherwood number and drag coefficient, which are crucial for industrial applications, are also shown in the table to demonstrate the impact of dimensionless physical parameters. In response to a steady rise in Lewis number and chemical reaction parameter, the heat transit rate tends to decline while the species transit rate increases.

KEYWORDS:

• Thermal radiation
• chemical reaction
• thermophoretic and Brownian motion effect
• Bvp4c
• exponentially stretched sheet

Disclosure statement

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

Additional information

Funding

One of the authors, Mr T. K. Das, acknowledges the financial support from the University Grants Commission, New Delhi (No. F. 82-44/2020 (SA-III) dated: 11.06.2021).