Effect of heat and mass transfer on a couple stress fluid in an asymmetric channel with peristalsis

An asymmetric channel under peristalsis is considered through which a couple stress fluid is flowing under the influence of magnetic field. Effect of temperature and concentration gradient are also considered. Energy and species equation are solved analytically and perturbation method is used to get velocity. The temperature increases as couple stress parameter increases initially but decreases later on. Fluid tends to become Newtonian for large couple stress parameter.