Modified Buongiorno’s model for fully developed mixed convection flow of nanofluids

What is it about?

This paper deals with the mixed convective heat transfer of nanofluids through a concentric vertical annulus. Because of the non-adherence of the fluid–solid interface in the presence of nanoparticle migrations, known as slip condition, the Navier’s slip boundary condition was considered at the pipe walls.

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Why is it important?

Assuming the fully developed flow and heat transfer, the basic partial differential equations including continuity, momentum, and energy equations have been reduced to two-point ordinary boundary value differential equations and solved numerically. Two cases including constant heat flux at the outer wall and insulated inner wall (Case A) and constant heat flux at the inner wall with insulated outer wall (Case B) have been considered.