Abstract
Melting effect in flow of third grade nanomaterials by a Riga surface is examined. Flow is created due to stretched surface. Thermal transportation characteristics are developed through heat source/sink and thermal radiation. Furthermore thermophoresis and random diffusion performances are also deliberated. Irreversibility analysis is addressed through thermodynamics second law. Second law thermodynamics allow us to recognize how well an isolated closed system performs in terms of the quality of the energy. Isothermal cubic autocatalysis chemical reactions are scrutinized at catalytic surface. Adequate transformations are employed to develop nonlinear set of ordinary differential system. Optimal homotopy analysis technique (OHAM) is utilized to construct convergent solution. Influences of several sundry variables for velocity field, temperature distribution, entropy optimization and concentration distribution are graphically examined. An opposite scenario is observed for temperature and velocity through melting parameter. Concentration and temperature have reverse trends against thermophoresis variable. A similar scenario is seen for entropy generation against radiation and melting parameters.