Abstract
We performed entropy generation analysis for a carbon nanotube (CNT) suspended nanofluid flow by a wedge with thermal radiation and convective boundary condition. The multi-wall carbon nanotube (MWCNT) with water as the base fluid was considered. Two-dimensional governing equations were transformed by similarity method into a set of coupled nonlinear ODEs and then solved analytically using optimal homotopy asymptotic method (OHAM). Moreover, solutions of these equations were further utilized in a dimensionless equation of entropy generation. The analytical results indicated that the entropy generation can be reduced by increasing radiation parameter and reducing the convection through boundaries, while nanoparticles have influence to increase the entropy production.
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References
Y. Ding, H. Alias, D. Wen and R. A. Williams, Heat transfer of aqueous suspensions of carbon nanotubes (CNT nanofluids), Int. J. Heat Mass Transf, 49 (2006) 240–250.
R. C. Bataller, Radiation effects for the Blasius and Sakiadis flows with a convective surface boundary condition, Appl Math Comput, 206 (2008) 832–840.
M. M. Rahman and I. A. Eltayeb, Radiative heat transfer in hydromagnetic nanofluid past a non-linear stretching surface with convective boundary condition, Meccanica, 48 (3) (2013) 601–615.
W. A. Khan and I. Pop, Boundary layer flow past a wedge moving in nanofluid, Mathematical Problems in Engineering (2013) http://dx.doi.org/10.1155/2013/637285.
M. Khan, M. Azam and A. S. Alshomrani, Unsteady slip flow of Carreau nanofluid over a wedge with nonlinear radiation and new mass flux condition, Results in Physics, 7 (2017) 2261–2270.
A. K. Pandey and M. Kumar, Chemical reaction and thermal radiation effects on boundary layer flow of nanofluid over a wedge with viscous and Ohmic dissipation, St. Petersburg Polytechnical University J.: Physics and Mathematics, 3 (2017) 322–332.
N. A. Yacob, A. Ishak and I. Pop, Falkner-Skan problem for a static and moving wedge in a nanofluids, Int. J. Thermal Sci, 50 (2011) 133–139.
H. Berrehal and A. Maougal, High order he’s homotopy perturbation method solution for boundary layer flow, Int. J. Mod. Math. Sci., 14 (4) (2016) 365–375.
V. Marinca and N. Herişanu, Application of optimal homotopy asymptotic method for solving nonlinear equations arising in heat transfer, Int. Commun. Heat Mass Transfer, 35 (6) (2008) 710–715.
F. Mabood, W. A. Khan and A. I. M. Ismail, Analytical solution for radiation effects on heat transfer in Blasius flow, Int. J. Mod. Eng. Sci., 2 (2) (2013) 63–72.
A. Bejan, A study of entropy generation in fundamental convective heat transfer, J. Heat Transf, 101 (1979) 718–725.
A. Bejan, Second-law analysis in heat transfer and thermal design, Adv. Heat Transf., 15 (1982) 1–58.
F. Hedayati, A. Malvandi and D. D. Ganji, Second-law analysis of fluid flow over an isothermal moving wedge, Alexandria Engineering J., 53 (1) (2014) 1–9.
A. Malvandi, D. D. Ganji, F. Hedayati and E. Yousefi Bar, An analytical study on entropy generation of nanofluids over a flat plate, Alexandria Engineering J., 52 (4) (2013) 595–604.
A. S. Butt, S. Munawar, A. Ali and A. Mehmood, Entropy generation in the Blasius flow under thermal radiation, Phys. Scr, 85 (2012) 035008, Doi: 10.1088/0031–8949/85/03/035008.
A. S. Butt and A. Ali, Entropy analysis of flow and heat transfer caused by a moving plate with thermal radiation, J. of Mechanical Science and Technology, 28 (1) (2014) 343–348.
Q. Xue, Model for thermal conductivity of carbon nanotube based composites, Phys B Condens Matter, 368 (2005) 302–307.
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Recommended by Associate Editor Youngsuk Nam
Hamza Berrehal received his M.S. in energy physics and renewable energies from Brothers Mentouri Constantine 1 University, Constantine, Algeria, where he is currently a Ph.D. candidate. His fields of interest are fluid mechanics, heat transfer, thermodynamics and applied mathematics.
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Berrehal, H., Maougal, A. Entropy generation analysis for multi-walled carbon nanotube (MWCNT) suspended nanofluid flow over wedge with thermal radiation and convective boundary condition. J Mech Sci Technol 33, 459–464 (2019). https://doi.org/10.1007/s12206-018-1245-y
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DOI: https://doi.org/10.1007/s12206-018-1245-y