“…Many geometrical configurations have been addressed including flat plates, channels, cones, spheres, wedges, inclined planes, and wavy surfaces. Non-Newtonian heat transfer studies have included power-law fluid models [9][10][11] i. e. shear-thinning and shear thickening fluids, simple viscoelastic fluids [12,13], Criminale-Ericksen-Fibley viscoelastic fluids [14], Johnson-Segalman rheological fluids [15], Bingham yield stress fluids [16], second grade (Reiner-Rivlin) viscoselastic fluids [17], third grade viscoelastic fluids [18], micropolar fluids [19], and bi-viscosity rheological fluids [20]. Viscoelastic properties can enhance or depress heat transfer rates, depending upon the kinematic characteristics of the flow field under consideration and the direction of heat transfer [21].…”