Thermal and solutal analysis in power law fluid under non-Fourier's diffusion conditions

Abstract Non-Fourier thermal and solutal transport in non-Newtonian power law rheological fluid is model via conservations laws under boundary layer approximations. The correlations for thermo-physical properties of pure, power law fluid and hybrid nano-structures are solved numerically with approximated conservations laws. The finite element method (FEM) is used for simulations purpose. The convergence is ensured and mesh-free analysis is performed. Iterative processes are done under computational tolerance 10−5. Relaxation phenomenon plays a significant role in controlling thermal and solutal boundary layer thickness. The impact of Joule heating can be minimized via thermal relaxation time. The impact of heat generation of temperature is similar to the impact of constructive chemical reaction on solutal transport.