Influence of polymers on drag and heat transfer of nanofluid past stretching surface: A molecular approach
Ahmad Adeel , Athar Maria , Khan Yasir
Journal of Central South University ›› 2023, Vol. 29 ›› Issue (12) : 3912 -3924.
Influence of polymers on drag and heat transfer of nanofluid past stretching surface: A molecular approach
This article studies the influence of polymers on drag reduction and heat transfer enhancement of a nanofluid past a uniformly heated permeable vertically stretching surface. Our prime focus is on analyzing the possible effects of polymer inclusion in the nanofluid on drag coefficient, Nusselt number and Sherwood number. Dispersion model is considered to study the behavior of fluid flow and heat transfer in the presence of nanoparticles. Molecular approach is opted to explore polymer addition in the base fluid. An extra stress arises in the momentum equation as an outcome of polymer stretching. The governing boundary layer equations are solved numerically. Dependence of physical quantities of engineering interest on different flow parameters is studied. Reduction in drag coefficient, Nusselt number and Sherwood number is noticed because of polymer additives.
polymers / nanofluid, stretching / concentration / drag coefficient / relaxation time / heat flux
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