Iranian Journal of Mechanical Engineering Transactions of ISME

Iranian Journal of Mechanical Engineering Transactions of ISME

Numerical study of forced convection laminar flow of a nanofluid in a parallel-channel with discrete heat sources

Author
sabihe fadaei tehrani
Abstract
In this study, the laminar forced convection heat transfer of water-coper nanofluid is numerically investigated within a parallel plate channel. Fixed temperature heat sources with the specified sizes and distances are embedded on the walls of the channel. The entry and exit sections of the channel as well as the sections between the heat sources are thermally insulated. The fluid flow with uniform velocity and temperature enters the channel. The channel length is considered large enough, so the flow in the channel output is assumed fully developed. The aim of this research is the numerical investigation of the effects of the Reynolds number, the solid volume fraction and the number of the heat sources on the flow field and heat transfer rate. For this purpose, the governing equations are discretized by finite difference method based on the control volume formulation and are solved using the SIMPLE algorithm. In order to validate the computer program, the results of this study have been compared with the results of the previous numerical studies. This comparison has confirmed the accuracy of the performance of the computer program. The results show that the rate of heat transfer increases by increasing the solid volume fraction and Reynolds number. The results also show that, heat transfer rate increases when the heat sourse is divided into smaller sections and these sections are distributed on the channel wall.
Keywords
Forced convection
Nanofluid
laminar flow
channel
discrete heat sources

Subjects

[1] Santra, A.K., Sen, S., and Chakraborty, N., “Study of Heat Transfer Due to Laminar Flow of Copper/Water Nanofluid Through Two Isothermally Heated Parallel Plates”, International Journal of Thermal Sciences,  Vol. 48, pp. 391-400, (2009).
 
[2] Zeinali Heris, S., Nassan, T.H., Noie, S.H., and Sardarabadi, M., “Laminar Convective Heat Transfer of /Water Nanofluid Through Square Cross-cectional Duct”, International Journal of Heat and Fluid Flow, Vol. 44, No. 4, pp. 375–382, (2013).
 
[3] Tahir, Sh., and  Mital, M., “Numerical Investingation of Laminar  Nanofluid Developing Flow and Heat Transfer in a Circular Channel”, Applied Thermal Engineering, Vol. 39, No. 9, pp. 8-12, (2012).
 
[4] Akbarinia, A., and  Behzadmehr, A., “Numerical Study of Laminar Mixed Convection of a Nanofluid in Horizontal Curved Tubes”, Applied Thermal Engineering,Vol. 27, pp. 1327-1337,(2007).
 
[5] Mirmasoumi, S., and Behzadmehr, A., “Numerical Study of Laminar Mixed Convection of a Nanofluid in a Horizontal Tube using Two-phase Mixture Model”, Applied Thermal Engineering, Vol. 28,  pp. 717-727, (2008).
 
[6] Dehshiri-Parizi, A., and Salimpour, M.R., “Water/Nanofluid Flow Heat Transfer and Pressure Drop Through Ducts with Circular, Square and Rectangular Cross-sections”, Modares Mechanical Engineering, Vol. 15, No. 5, pp. 377-382, (2015).
 
[7] Feng, Z.Z., and Li, W., “Laminar Mixed Convection of  Large-Prandtl-Number in Tube Nanofluid Flow, Part I: Experimental Study”, International Journal of Heat and Mass Transfer, Vol. 65, pp. 919-927, (2013).
 
[8] Akbari, M., Behzadmehr, A., and Shahraki, F., “Fully Developed Mixed Convection in Horizontal and Inclined Tubes with Uniform Heat Flux using Nanofluid”, International Journal of Heat and Fluid Flow, Vol. 29, pp. 545-556, (2008).
 
[9] Hosseinipour, E., Zeinali Heris, S., and Shanbedi, M.,  “Experimental Investigation of Heat Transfer Coefficient and Pressure Drop of Carbon Nanotubes-water Nanofluid under Constant Heat Flux”, Modares Mechanical Engineering, Vol. 14, No. 13, pp. 19-26, (2014).
 
[10] Fakour, M., Vahabzadeh, A., and Ganji, D.D., “Scrutiny of Mixed Convection Flow of a Nanofluid in a Vertical Channel, Modeling of Microscale Transport in Multiphase Systems”, Case Studies in Thermal Engineering, Vol. 4, pp. 15-23, (2014).
 
[11] Mansour, R.B., Galanis, N., and Nguyen, C.T., “Experimental Study of Mixed Convection with Water/Nanofluid in Inclined Tube with Uniform Wall Heat Flux”, International Journal of Thermal Sciences, Vol. 50, pp. 403-410, (2011).
[12] Alvarino, P.F., SaizJabardo, J.M., Arce, A., and Lamas Galdo, M.I., “A Numerical Investigation of Laminar Flow of a Water/Alumina Nanofluid”, International Journal of Heat and Mass Transfer, Vol. 59, pp. 423-432, (2013).
 
[13] Salimi Gachuiee, M., Peyghambarzadeh, S.M., and Hashemabadi, S.H., “Experimental Investigation of Convective Heat Transfer of /Water”, Modares Mechanical Engineering, Vol. 15, No. 2, pp. 270-280, (2015).
 
[14] Malvandi, A., and Ganji, D.D., “Effects of Nanoparticle Migration on Force Convection of Alumina/Water Nanofluid in a Cooled Parallel-plate Channel”,Advanced Powder Technology, Vol. 84, pp. 196-206, (2014).
 
[15] Kalteh, M., Abbassi, A., Saffar-Avval, M., Frijns, A., Darhuber, A., and Harting, J., “Experimental and Numerical Investigation of Nanofluid Forced Convection Inside a Wide Microchannel Heat Sink”, Applied Thermal Engineering, Vol. 36, pp. 260-268, (2012).
 
[16] Ahmed, M., and Eslamian, M., “Laminar Forced Convection of a Nanofluid in a Microchannel: Effect of Flow Inertia and External Forces on Heat Transfer and Fluid Flow Characteristics”, Applied Thermal Engineering,Vol. 78, pp. 326-338, (2015).
 
[17] Brinkman, H.C., “The Viscosity of Concentrated Suspension and Solution”,  International Journal Chemical Physics, Vol. 20, No. 4, pp. 571-581, (1952).
 
[18] Abu-Nada, E., Masoud, Z., and Hijazi, A., “Natural Convection Heat Transfer Enhancement in Horizontal Concentric Annuli using Nanofluids”, Int. Comm. in Heat and Mass Transfer, Vol. 35, No. 5, pp. 657-665, (2008).
 
[19] Corcione, M., “Empirical Correlating Equations for Predicting the Effective Thermal Conductivity and Dynamic Viscosity of Nanofluids”, Energy Convers. Manag, Vol. 52, pp. 789-793, (2011).
 
[20] Patankar, S.V., Numerical Heat Transfer and Fluid Flow, Hemisphere, Washington, D.C, (1980).
 
[21] Zeinali Heris, S., Etemad, S.Gh., and Nasr Esfahany, M., “Experimental Investigation of Oxide Nanofluids Laminar Flow Convective Heat Transfer”, Int. Comm. in Heat and MassTransfer, Vol.33, pp. 529-535, (2006).
Iranian Journal of Mechanical Engineering Transactions of ISME
Volume 18, Issue 4 - Serial Number 45
Fluid Mechanics and Heat Transfer
Winter 2017
Pages 29-54

  • Receive Date 26 January 2016
  • Accept Date 01 June 2017