Numerical study of laminar mixed convection of a nanofluid in a horizontal tube using two-phase mixture model

2008 ◽  
Vol 28 (7) ◽  
pp. 717-727 ◽  
Author(s):  
S. Mirmasoumi ◽  
A. Behzadmehr
Keyword(s):  
Mixed Convection ◽  
Mixture Model ◽  
Numerical Study ◽  
Horizontal Tube ◽  
Two Phase ◽  
Laminar Mixed Convection ◽  
Phase Mixture

Investigation of nanofluid mixed convection in a shallow cavity using a two-phase mixture model

2014 ◽  
Vol 75 ◽  
pp. 204-220 ◽  
Author(s):  
M. Goodarzi ◽  
M.R. Safaei ◽  
K. Vafai ◽  
G. Ahmadi ◽  
M. Dahari ◽  
...  
Keyword(s):  
Mixed Convection ◽  
Mixture Model ◽  
Two Phase ◽  
Shallow Cavity ◽  
Phase Mixture

Numerical Study of Laminar Mixed Convection of a Nanofluid in a Horizontal Curved Tube with Constant Heat Flux and Mass Flow Rate

2011 ◽  
Vol 110-116 ◽  
pp. 3657-3662
Author(s):  
S. Alikhani ◽  
A. Behzadmehr ◽  
S. Mirmasoumi
Keyword(s):  
Heat Flux ◽  
Mixed Convection ◽  
Mass Flow Rate ◽  
Mass Flow ◽  
Flow Rate ◽  
Volume Fraction ◽  
Numerical Study ◽  
Two Phase ◽  
Curved Tube ◽  
Laminar Mixed Convection

Fully developed laminar mixed convection of a nanofluid (water/Al2O3) in a horizontal curved tube is numerically investigated. Three-dimensional elliptic governing equations have been solved to show how nanoparticle concentration affects on thermal and hydrodynamic parameters while these parameters are impressed by centrifugal and buoyancy forces under constant mass flow rate and heat flux. Comparisons with previously published experimental works on horizontal curved tubes show good agreements between the results. Results which are obtained using the two – phase mixture model indicate that adding the nanoparticles causes changes in the properties of nanofluid and finally increases the temperature of the flow. Furthermore, increasing nanoparticles volume fraction at first augments the heat transfer coefficient of nanofluid and then, for higher concentration of particles, decreases this thermal parameter of nanofluid.

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