MATHEMATICAL STUDY OF HEAT TRANSFER IN A STAGNATION FLOW OF A HYBRID NANOFLUID OVER A STRETCHING/SHRINKING CYLINDER

The steady two-dimensional incompressible boundary-layer, stagnation-point fl ows of an ordinary nanofl uid and a hybrid CuO + MgO nanofl uid over a stretching/shrinking cylinder were investigated using the dimensionless master Prandtl equations. It was established that the thermal conductivity of the hybrid nanofl uid is higher, it transfers a larger amount of heat from the curved surface of the cylinder, and the skin friction force acting on its fl ow is larger, as compared to those of the ordinary nanofl uid, and that the skin friction force acting on the fl ows of these fl uids increases with increase in the volume fraction of nanoparticles in them.
   
Author:  T. Poornima, P. Sreenivasulu, B. Souayehc
Keywords:  hybrid nanofl uid, heat source, radiation, stagnation point, stretching/shrinking cylinder
Page:  1443