• Esmaeilnejad, A., Aminfar, H., Shafiee Neistanak, M./Numerica investigation of forced convection heat transfer through microchannels with non-Newtonian nanofluids/International Journal of Thermal Sciences/2014/p 76-86.

• Keshavarz, Moraveji, M., Haddad, S.M.H., Darabi, M./Modeling of forced convective heat transfer of a non-Newtonian nanofluid in the horizontal tube under constant heat flux with computational fluid dynamics/International Communications in Heat and Mass Transfer/2012/p 995–۹۹۹٫

• Kalteh, M., Abbassi, A., Saffar-Avval, M., Harting Jens/Eulerian–Eulerian two-phase numerical simulation of nanofluid laminar forced convection in a microchannel/ International Journal of Heat and Fluid Flow/2011/p 107–۱۱۶٫

• Manca, O., Nardini, S., Ricci, D./A numerical study of nanofluid forced convection in ribbed channels/Applied Thermal Engineering/2012/p 280-292.

• Hojjat, M., Etemad, S.Gh., Bagheri, R., Thibault, J./Convective heat transfer of non-Newtonian nanofluids through a uniformly heated circular tube/International Journal of Thermal Sciences/ 2011/p 525-531.

• Salman, B.H., Mohammed, H.A., Munisamy, K.M., Kherbeet, A.Sh./Characteristics of heat transfer and fluid flow in microtube and microchannel using conventional fluids and nanofluids/ Renewable and Sustainable Energy Reviews/2013/p 848–۸۸۰٫

• Salma, Halelfadl., Ahmed Mohammed, A., Normah, M.G., Thierry, M., Patrice, E., Robiah, A./Optimization of thermal performances and pressure drop of rectangular microchannel heat sink using aqueous carbon nanotubes based nanofluid/Applied Thermal Engineering/2014/p 492-499.

• Hojjat, M., Etemad, S.Gh., Bagheri, R., Thibault, J./Turbulent forced convection heat transfer of non-Newtonian nanofluids/Experimental Thermal and Fluid Science/2011/p 1351–۱۳۵۶٫

• Hojjat, M., Etemad, S.Gh., Thibault, J./Rheological characteristics of non- Newtonian nanofluids: Experimental investigation/ International Communications in Heat and Mass Transfer/2011/p 144–۱۴۸٫

• Yarin, L.P., Mosyak, A., Hetsroni, G./Fluid Flow, Heat Transfer and Boiling in Micro-Channels/ Springer,Verlag Berlin Heidelberg/ 2009.

• Bianco, V., Manca, O., Nardini, S./Numerical investigation on nanofluids turbulent convection heat transfer inside a circular tube/International Journal of Thermal Sciences/2011/p 341-349.

• Kandlikar, S., Garimella, S., Li, D., Colin, S., R King, M./Heat Transfer and Fluid Flow in Minichannels and Microchannels/Elsevier/ USA/ 2006.

• Ohadi, M., Choo, K., Dessiatoun, S., Cetegen, E./Next Generation Microchannel Heat Exchangers / Springer/ New York Heidelberg Dordrecht London/ 2013.

• Tuckerman, D.B., Pease, R.F./High performance heat sinking for VLSI/ IEEE Electron. Dev.Letts. EDL-2/1981/p 126–۱۲۹٫

• Gnielinski, V./New equations for heat and mass transfer in turbulent pipe and channel flow/Int.Chem. Eng/1976/p 359–۳۶۸٫

Title:
Numerical simulation of forced convection of non-newtonian nanofluid flow in microtubes
Abstract:
In this study, turbulent flow of a non-Newtonian nanofluid is simulated in a microchannel with a circular cross section. At first, the types of microchannels classification, manufacturing methods of microchannels, also benefits and challenges of microchannels is expressed. After that, different models in describing the behavior of non-Newtonian fluids And then The concept of nanofluids, the techniques of nanoparticle production and preparation of nanofluids, different models for expression the termophysics properties of nanofluids like density, specific heat coefficient, thermal conductivity and dynamic viscosity is described. Also Suitable models were selected for the purposes of this study. By using CFX Software, equations of conservation of mass, conservation of momentum and conservation of energy is solved for turbulent flow of non-Newtonian fluid of aqueous solution 0.5% wt. of carboxymethyl cellulose and also for nanofluids containing CuO particles in the mentioned non-Newtonian fluid. Velocity fields, pressure and temperature of nanofluids obtained and calculated by analyzing the results of the heat transfer coefficient and Nusselt number of nanofluids. The effects of volume fraction or concentration of nanoparticles, Reynolds number and diameter nanoparticles have been studied on the results which represents an increase in heat transfer coefficient and Nusselt number by using Newtonian nanofluids compared to base Newtonian fluid. There is a direct relationship between this increase by volume fraction and Reynolds number. Also by decrease the diameter of the nanoparticles, heat transfer coefficient increases.
Keywords:Nanofluid, Non-Newtonian Fluid, Turbulent Flow, Nuselt Number.

Mazandaran University of science and technology
faculty of Mechanical engineering
Numerical Simulation of Forced convection of Non-Newtonian Nanofluid Flow in Microtubes
By
Mobin yaghmatalab
Thesis submitted to the
faculty of the engineering of the
Mazandaran University of science and technology
In partial fulfillment of the
requirements for the degree of
Master of science
in
Mechanical engineering
supervisor
Prof.Ali Akbar Ranjbar
Advisor
Ali Rahimi Gheinani
Winter 2015

• Passive techniques ↑

• Active techniques ↑

• Vortex heat transfer enhancement ↑

• Micro-channels ↑

• Nanofluid ↑

• Tuckerman ↑

• Pease ↑

• Very large-scale integrated ↑

• Suo ↑