The Nanofluid Flow and Heat Transfer in a Circular Duct: Swirl and Side Mass Injection Impact
Author(s):
Ranajit Midya, Rajat Kabiraj, Prof. Snehamoy Majumder
Keywords:
heattransfer, circular duct, nanofluid, particle, volume fraction, swirl, side mass injection.
Abstract
In the present research work, the analysis of the flow geometry and the conjugate heat transfer of nanofluids in a circular duct using CuO-Water, Al2O3-Water and TiO2-Water respectively have been conducted numerically. The study investigates the influence of swirl and side mass injection on the flow dynamics and heat transfer characteristics of nanofluids in a circular duct. The fluid flow is assumed to be steady, axi-symmetric laminar and incompressible with no chemical reaction. A constant inlet temperature and constant wall temperature have been adopted and a swirl is imparted at the inlet. Also side mass injection effect has also been investigated. The friction factors, overall heat transfer coefficient along with the Nusselt number variation have been estimated. The detail velocity field, has been found, validated and presented for a particular Reynolds number and particle volume fraction of the nanoparticles considered. The most important achievement is the enhancement of the overall heat transfer coefficient and Nusselt number indicating those parameter increases with the increase in swirl.
Article Details
Unique Paper ID: 166785

Publication Volume & Issue: Volume 11, Issue 2

Page(s): 1806 - 1811
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