Numerical investigation on laminar flow due to sudden expansion using nanofluids

David Santosh Christopher; G. R. Madhusudhana; P. Venkumar; P. Rajesh Kanna; H. A. Mohammed

doi:10.1166/jctn.2012.2642

Numerical investigation on laminar flow due to sudden expansion using nanofluids

David Santosh Christopher, G. R. Madhusudhana, P. Venkumar, P. Rajesh Kanna^*, H. A. Mohammed

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	2217-2227
Number of pages	11
Journal	Journal of Computational and Theoretical Nanoscience
Volume	9
Issue number	12
DOIs	https://doi.org/10.1166/jctn.2012.2642
State	Published - Dec 2012
Externally published	Yes

Keywords

Asymmetric Solutions
Flow Bifurcation
Flow Separation
Nanofluids
Sudden Expansion Flow

ASJC Scopus subject areas

General Chemistry
General Materials Science
Condensed Matter Physics
Computational Mathematics
Electrical and Electronic Engineering

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10.1166/jctn.2012.2642

Cite this

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title = "Numerical investigation on laminar flow due to sudden expansion using nanofluids",

abstract = "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.",

keywords = "Asymmetric Solutions, Flow Bifurcation, Flow Separation, Nanofluids, Sudden Expansion Flow",

author = "Christopher, {David Santosh} and Madhusudhana, {G. R.} and P. Venkumar and Kanna, {P. Rajesh} and Mohammed, {H. A.}",

year = "2012",

month = dec,

doi = "10.1166/jctn.2012.2642",

language = "English",

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pages = "2217--2227",

journal = "Journal of Computational and Theoretical Nanoscience",

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T1 - Numerical investigation on laminar flow due to sudden expansion using nanofluids

AU - Christopher, David Santosh

AU - Madhusudhana, G. R.

AU - Venkumar, P.

AU - Kanna, P. Rajesh

AU - Mohammed, H. A.

PY - 2012/12

Y1 - 2012/12

N2 - 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.

AB - 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.

KW - Asymmetric Solutions

KW - Flow Bifurcation

KW - Flow Separation

KW - Nanofluids

KW - Sudden Expansion Flow

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DO - 10.1166/jctn.2012.2642

M3 - Article

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JF - Journal of Computational and Theoretical Nanoscience

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Numerical investigation on laminar flow due to sudden expansion using nanofluids

Abstract

Keywords

ASJC Scopus subject areas

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