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Numerical Investigation of Heat Transfer from a Two-Dimensional Sudden Expansion Flow Using Nanofluids

Christopher, David Santosh and Kanna, Rajesh P and Madhusudhana, GR and Venkumar, P and Mohammed, HA (2012) Numerical Investigation of Heat Transfer from a Two-Dimensional Sudden Expansion Flow Using Nanofluids. In: NUMERICAL HEAT TRANSFER PART A-APPLICATIONS, 61 (7). pp. 527-546.

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Official URL: http://dx.doi.org/10.1080/10407782.2012.666933

Abstract

Laminar forced convection heat transfer from two-dimensional sudden expansion flow of different nanofluids is studied numerically. The governing equations are solved using the unsteady stream function-vorticity method. The effect of volume fraction of the nanoparticles and type of nanoparticles on heat transfer is examined and found to have a significant impact. Local and average Nusselt numbers are reported in connection with various nanoparticle, volume fraction, and Reynolds number for expansion ratio 2. The Nusselt number reaches peak values near the reattachment point and reaches asymptotic value in the downstream. Bottom wall eddy and volume fraction shows a significant impact on the average Nusselt number.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to Taylore & Francis INC
Keywords: BACKWARD-FACING STEP;LAMINAR-FLOW;TRANSFER ENHANCEMENT; BIFURCATION;CONVECTION;BUOYANCY;CHANNELS;REGIME
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Date Deposited: 18 Jul 2012 05:48
Last Modified: 18 Jul 2012 05:49
URI: http://eprints.iisc.ernet.in/id/eprint/44640

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