Cattaneo-Christov Double Diffusion (CCDD) and magnetized stagnation point flow of non-Newtonian fluid with internal resistance of particles

Intention here is to discuss the physical features of MHD stagnation point flow of Williamson nanomaterial over a stretched surface. Cattaneo-Christov Double Diffusion (CCDD) concept is incorporated to deliberate the behaviors of mass and heat transfer rates. These models are based upon Fick's and Fourier's laws versus solutal and thermal relaxation times. Innovative characteristics regarding thermophoresis and Brownian diffusion effect are also scrutinized. Relevant transformations are used to reduce the nonlinear expression to ordinary one. Convergent solution by optimal homotopy analysis technique (OHAM) is constructed. The average residual error is computed through OHAM Discussion is arranged for velocity, concentration and temperature. Skin friction co-efficient, temperature gradient and mass transfer rate are graphically discussed. Velocity boosts up significantly via velocity ratio parameter. Temperature and velocity have opposite effects for Weissenberg number. Concentration of the material particles increases against larger estimations of thermal relaxation time.