naa a22 4500 510820824 CHVBK 20180411083530.0 cr unu---uuuuu 180411e20130801xx s 000 0 eng 10.1007/s11814-013-0087-7 doi (NATIONALLICENCE)springer-10.1007/s11814-013-0087-7 Accuracy enhancement of thermal dispersion model in prediction of convective heat transfer for nanofluids considering the effects of particle migration [Elektronische Daten] [Mehdi Bahiraei, Seyed Hosseinalipour] A thermal dispersion model is utilized for simulation of convective heat transfer of water-TiO2 nanofluid for laminar flow in circular tube. Concentration distribution at cross section of the tube was obtained considering the effects of particle migration, and this concentration distribution was applied in the numerical solution. Numerical solution was done at Reynolds numbers of 500 to 2000 and mean concentrations of 0.5 to 3%. Meanwhile, an experimental study was conducted to investigate the accuracy of the results obtained from the numerical solution. Non-uniformity of the concentration distribution increases with raising mean concentration and Reynolds number. Thereby, for mean concentration of 3%, at Reynolds numbers of 500 and 2000, the concentration from wall to center of the tube increases 2.6 and 30.9%, respectively. In the dispersion model, application of non-uniform concentration distribution improves the accuracy in prediction of the convective heat transfer coefficient in comparison with applying uniform concentration. Korean Institute of Chemical Engineers, Seoul, Korea, 2013 Water-TiO2 Nanofluid nationallicence Non-uniform Concentration nationallicence Experimental nationallicence Heat Transfer nationallicence Particle Migration nationallicence Bahiraei Mehdi Department of Energy, Kermanshah University of Technology, Kermanshah, Iran aut Hosseinalipour Seyed CFD Lab & CAE Center, School of Mechanical Engineering, Iran University of Science & Technology, Narmak, Tehran, Iran aut Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/8(2013-08-01), 1552-1558 0256-1115 30:8<1552 2013 30 11814 https://doi.org/10.1007/s11814-013-0087-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11814-013-0087-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bahiraei Mehdi Department of Energy, Kermanshah University of Technology, Kermanshah, Iran aut NATIONALLICENCE 700 1- Hosseinalipour Seyed CFD Lab & CAE Center, School of Mechanical Engineering, Iran University of Science & Technology, Narmak, Tehran, Iran aut NATIONALLICENCE 773 0- Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/8(2013-08-01), 1552-1558 0256-1115 30:8<1552 2013 30 11814 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer