This framework presents heat transfer analysis for swirling flow of
viscoplastic fluid bounded by a permeable rotating disk. Problem formulation
is made through constitutive relations of Bingham fluid model. Viscous
dissipation effects are preserved in the mathematical model. Entropy
production analysis is made which is yet to be explored for the von-K?rm?n
flow of non-Newtonian fluids. Having found the similarity equations, these
have been dealt numerically for broad parameter values. The solutions are
remarkably influenced by wall suction parameter (A) and Bingham number (Bn)
which measures the fluid yield stress. Akin to earlier numerical results,
thermal boundary layer suppresses upon increasing wall suction velocity.
Thermal penetration depth is much enhanced when fluid yield stress becomes
large. Higher heat transfer rate can be accomplished by employing higher
suction velocity at the disk. However, deterioration in heat transfer is
anticipated as fluid yield stress enlarges. Current numerical results are in
perfect line with those of an existing article in limiting sense.
Second law analysis of heat transfer in swirling flow of Bingham fluid by a rotating disk subjected to suction effect
