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Numerical Investigation on Laminar Flow Due to Sudden Expansion Using Nanofluids

Christopher, David Santosh and Madhusudhana, GR and Venkumar, P and Kanna, Rajesh P and Mohammed, HA (2012) Numerical Investigation on Laminar Flow Due to Sudden Expansion Using Nanofluids. In: JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE, 9 (12). pp. 2217-2227.

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Official URL: http://www.aicfm2011.iitm.ac.in/papers/AICFM_ES_01...


Laminar two-dimensional sudden expansion flow of different nanofluids is studied numerically. The governing equations are solved using stream function-vorticity method. The effect of volume fraction of the nanoparticles and type of nanoparticles on flow behaviour is examined and found significant impact. The flow response to Reynolds number in the presence of nanoparticles is examined. The presence of nanoparticles decreases the flow bifurcation Reynolds number. The size and the reattachment length of the bottom wall recirculation increase with increasing volume fraction and particle density. The effect of volume fraction and density of nanoparticles on friction factor is reported. The bottom wall recirculation strongly respond to the variation in volume faction and type of particles. However, weak response is observed for top wall recirculation.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to AMER SCIENTIFIC PUBLISHERS, VALENCIA, USA
Keywords: Nanofluids;Sudden Expansion Flow;Flow Separation;Flow Bifurcation;Asymmetric Solutions
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Depositing User: Francis Jayakanth
Date Deposited: 02 Mar 2013 04:58
Last Modified: 02 Mar 2013 04:58
URI: http://eprints.iisc.ac.in/id/eprint/45966

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