Comparison between variational iteration method and homotopy perturbation method for thermal diffusion and diffusion thermo effects of thixotropic fluid through biological tissues with laser radiation existence

In the present paper a description for thermal diffusion and diffusion thermo effect of thixotropic fluid through biological tissues investigated mathematically. The comparison between variational iteration method (VIM) and Homotopy perturbation methods (HPM) for solving system of non linear partial differential equations describing the momentum, energy, mass and bioheat transfer has been discussed. The effects of the model parameters on shear stress of the fluid, tissue temperature, concentrations and fluid temperature have been plotted graphically.