Combined electrical MHD heat transfer thermal extrusion system using Maxwell fluid with radiative and viscous dissipation effects

The present study is one kind of numerical application to a thermal extrusion manufacturing processing system energy conversion problem by using some improved parameters control method. Combined electrical MHD Ohmic dissipation forced and free convection of an incompressible Maxwell fluid on a stagnation point heat and mass transfer energy conversion problem have been studied. The governing equations are solved by an analysis similarity transformation method and an improved numerical finite difference method. The above two methods have been used to analyze present problem which is provided a different method to deal with the similar thermal system energy conversion problems by using parameter control method. The combination thermal system numerical solutions of the flow velocity field, temperature field, mass transfer and heat conduction had been produced out as functions of the viscoelastic number (E), Prandtl number (Pr) and buoyancy parameters (Gc, Gt), etc. The effects of related importance parameters have also been discussed in detail. The results are shown that it will be produced greater heat transfer effects with larger values of viscoelastic number, Prandtl number, free convection parameters, electric parameter (El), heat source/sink (AL) and conduction-convection number (Ncc). At last, it can be obtained a higher efficiency thermal extrusion system. (C) 2016 Elsevier Ltd. All rights reserved.