Entropy generation analysis of unsteady MHD nanofluid flow in a porous pipe

被引：0

作者：

Zahor, Feda A. ^{[1
]}

Jain, Reema ^{[2
]}

Ali, Ahmada O. ^{[3
]}

Masanja, Verdiana Grace ^{[1
]}

机构：

[1] Department of Applied Mathematics and Computational Sciences, Nelson Mandela African Institution of Science and Technology, P.O. Box 447, Arusha

[2] Department of Computer Systems and Mathematics, Ardhi University, P.O. Box 35176, Dar-es-Salam

[3] Department of Mathematics and Statistics, University Jaipur

来源：

International Journal of Thermofluids | 2024年 / 24卷

关键词：

Convective cooling MHD; Entropy generation; Nanofluid;

D O I：

10.1016/j.ijft.2024.100907

中图分类号：

学科分类号：

摘要：

This article presents a numerical investigation into the entropy production of nanofluids flowing through a porous medium in a permeable conduit, focusing on water-based solutions containing Titanium Carbide (TiC) and Silicon Carbide (SiC) nanoparticles. These nanoparticles are selected for their heat transfer properties. The flow system's governing equations are developed and solved using the Runge-Kutta-Fehlberg method. The study examines the influence of key nondimensional parameters, including the solid volume fraction of nanoparticles, radiation parameters, and Reynolds number, on temperature, velocity profiles, and entropy generation. The results show that Silicon Carbide-water nanofluids perform efficiently in terms of heat transfer and entropy minimization. Additionally, Silicon Carbide exhibits low skin friction at the pipe wall, with this effect increasing as the solid volume percentage of nanoparticles rises. The study also indicates that irreversibility due to heat transfer becomes more significant near the pipe wall as the solid volume fraction decreases and increases with higher radiation parameters and Reynolds number. These findings are presented graphically and in tabular form to illustrate the physical significance of the problem. © 2024

引用

共 32 条

[1]

Khan M., Karim I., Rahman M., Arifuzzaman S., Biswas P., Williamson fluid flow behavior of MHD convective-radiative Cattaneo–Christov heat flux type over a linearly stretched-surface with heat generation and thermal-diffusion, Front. Heat Mass Transf. FHMT, 9, 1, (2017)

[2]

Sarkar T., Arifuzzaman S., Ahmed R., Khan M., Ahmmed S.F., MHD radiative flow of Casson and Williamson nanofluids over an inclined cylindrical surface with chemical reaction effects, Int. J. Heat Technol., pp. 1117-1126, (2019)

[3]

Zhang C., Zheng L., Zhang X., Chen G., MHD flow and radiation heat transfer of nanofluids in porous media with variable surface heat flux and chemical reaction, Appl. Math. Model., 39, 1, pp. 165-181, (2015)

[4]

Malvandi A., Safaei M., Kaffash M., Ganji D., MHD mixed convection in a vertical annulus filled with Al2O3–water nanofluid considering nanoparticle migration, J. Magn. Magn. Mater., 382, pp. 296-306, (2015)

[5]

Afify A.A., Elgazery N.S., Effect of a chemical reaction on magnetohydrodynamic boundary layer flow of a Maxwell fluid over a stretching sheet with nanoparticles, Particuology, 29, pp. 154-161, (2016)

[6]

Sheremet M.A., Oztop H., Pop I., MHD natural convection in an inclined wavy cavity with corner heater filled with a nanofluid, J. Magn. Magn. Mater., 416, pp. 37-47, (2016)

[7]

Bondareva N.S., Sheremet M.A., Oztop H.F., Abu-Hamdeh N., Heatline visualization of MHD natural convection in an inclined wavy open porous cavity filled with a nanofluid with a local heater, Int. J. Heat Mass Transf., 99, pp. 872-881, (2016)

[8]

Mumraiz S., Ali A., Awais M., Shutaywi M., Shah Z., Entropy generation in the electrical magnetohydrodynamic flow of Al2O3–Cu/H2O hybrid nanofluid with non-uniform heat flux, J. Therm. Anal. Calorim., 143, 3, pp. 2135-2148, (2021)

[9]

Mkwizu M.H., Matofali A.X., Ainea N., (2018)

[10]

Ogunseye H.A., Sibanda P., A mathematical model for entropy generation in a Powell-Eyring nanofluid flow in a porous channel, Heliyon, 5, 5, (2019)

← 1 2 3 4 →