Chemically reacting fluid flow induced by an exponentially accelerated infinite vertical plate in a magnetic field and variable temperature via LTT and FEM. (English) Zbl 1474.76104

Raju, R. Srinivasa; Aruna, G.; Naidu, N. Swamy; Varma, S. V. K.; Rashidi, M. M.

Theor. Appl. Mech. (Belgrade) 43, No. 1, 49-83 (2016).

Summary: In this research paper, we found both numerical and analytical solutions for the effect of chemical reaction on unsteady, incompressible, viscous fluid flow past an exponentially accelerated vertical plate with heat absorption and variable temperature in a magnetic field. The flow problem is governed by a system of coupled non-linear partial differential equations with suitable boundary conditions. We have solved the governing equations by an efficient, accurate, powerful finite element method (FEM) as well as Laplace transform technique (LTT). The evaluation of the numerical results are performed and graphical results for the velocity, temperature and concentration profiles within the boundary layer are discussed. Also, the expressions for the skin-friction, Nusselt number and the Sherwood number coefficients have been derived and discussed through graphs and tabular forms for different values of the governing parameters.

MSC:

76W05	Magnetohydrodynamics and electrohydrodynamics
65N30	Finite element, Rayleigh-Ritz and Galerkin methods for boundary value problems involving PDEs
76V05	Reaction effects in flows
76M10	Finite element methods applied to problems in fluid mechanics

Keywords:

chemical reaction; MHD; finite element technique; Laplace transform technique

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