Existence of Regular Solutions for a Class of Incompressible Non-Newtonian MHD Equations Coupled to the Heat Equation

Abstract

AbstractWe consider a system of PDE’s describing the steady flow of an electrically conducting fluid in the presence of a magnetic field. The system of governing equations composes of the stationary non-Newtonian incompressible MHD equations coupled to the heat equation wherein the influence of buoyancy is taken into account in the momentum equation and the Joule heating and viscous heating terms are included. We proved the existence of $$C^{1,\gamma }({\bar{\Omega }})\times W^{2,r}(\Omega )\times W^{2,2}{(\Omega )}$$ C 1 , γ ( Ω ¯ ) × W 2 , r ( Ω ) × W 2 , 2 ( Ω ) solutions of the systems for $$1< p<2$$ 1 < p < 2 corresponding to a small data and we show that this solution is unique in case $$6/5< p < 2$$ 6 / 5 < p < 2 . Moreover, we also proved the higher regularity properties of this solution.