Effect of segmental heating on mixed convection aiding flow in a vertical porous annulus

N. J. Salman Ahmed; Abdullah A A A Al-Rashed; Sarfaraz Kamangar; T. M Yunus Khan; H. M T Khaleed

doi:10.1063/1.4952374

Effect of segmental heating on mixed convection aiding flow in a vertical porous annulus

N. J. Salman Ahmed, Abdullah A A A Al-Rashed^*, Sarfaraz Kamangar, T. M Yunus Khan, H. M T Khaleed

^*Corresponding author for this work

Mechanical and Industrial Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Mixed convection flow in a vertical porous annulus embedded with fluid saturated porous medium for aiding is investigated. The annulus is imposed by 20%, 35% and 50% heater length at the bottom, mid and top sections of the annulus respectively. Darcy law with thermal non-equilibrium approach is considered. The governing partial differential equations are converted to simple algebraic equations using Finite Element Method (FEM). The effects of Peclet number Pe and conductivity ratio Kr on heat transfer and fluid flow behaviour are examined and it is found that for lower conductivity ratio, the heat transfer rate was higher with the increase in the Peclet number Pe, whereas this trend reversed when thermal conductivity ratio Kr is increased.

Original language	English
Title of host publication	International Conference of Numerical Analysis and Applied Mathematics 2015, ICNAAM 2015
Publisher	American Institute of Physics Inc.
Volume	1738
ISBN (Electronic)	9780735413924
DOIs	https://doi.org/10.1063/1.4952374
Publication status	Published - Jun 8 2016
Event	International Conference of Numerical Analysis and Applied Mathematics 2015, ICNAAM 2015 - Rhodes, Greece Duration: Sep 23 2015 → Sep 29 2015

Other

Other	International Conference of Numerical Analysis and Applied Mathematics 2015, ICNAAM 2015
Country	Greece
City	Rhodes
Period	9/23/15 → 9/29/15

Keywords

Finite Element Method
Mixed convection
Thermal non-equilibrium

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1063/1.4952374

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Salman Ahmed, N. J., Al-Rashed, A. A. A. A., Kamangar, S., Khan, T. M. Y., & Khaleed, H. M. T. (2016). Effect of segmental heating on mixed convection aiding flow in a vertical porous annulus. In International Conference of Numerical Analysis and Applied Mathematics 2015, ICNAAM 2015 (Vol. 1738). [480138] American Institute of Physics Inc.. https://doi.org/10.1063/1.4952374

Effect of segmental heating on mixed convection aiding flow in a vertical porous annulus. / Salman Ahmed, N. J.; Al-Rashed, Abdullah A A A; Kamangar, Sarfaraz; Khan, T. M Yunus; Khaleed, H. M T.

International Conference of Numerical Analysis and Applied Mathematics 2015, ICNAAM 2015. Vol. 1738 American Institute of Physics Inc., 2016. 480138.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Salman Ahmed, NJ, Al-Rashed, AAAA, Kamangar, S, Khan, TMY & Khaleed, HMT 2016, Effect of segmental heating on mixed convection aiding flow in a vertical porous annulus. in International Conference of Numerical Analysis and Applied Mathematics 2015, ICNAAM 2015. vol. 1738, 480138, American Institute of Physics Inc., International Conference of Numerical Analysis and Applied Mathematics 2015, ICNAAM 2015, Rhodes, Greece, 9/23/15. https://doi.org/10.1063/1.4952374

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abstract = "Mixed convection flow in a vertical porous annulus embedded with fluid saturated porous medium for aiding is investigated. The annulus is imposed by 20%, 35% and 50% heater length at the bottom, mid and top sections of the annulus respectively. Darcy law with thermal non-equilibrium approach is considered. The governing partial differential equations are converted to simple algebraic equations using Finite Element Method (FEM). The effects of Peclet number Pe and conductivity ratio Kr on heat transfer and fluid flow behaviour are examined and it is found that for lower conductivity ratio, the heat transfer rate was higher with the increase in the Peclet number Pe, whereas this trend reversed when thermal conductivity ratio Kr is increased.",

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AU - Salman Ahmed, N. J.

AU - Al-Rashed, Abdullah A A A

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AU - Khaleed, H. M T

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N2 - Mixed convection flow in a vertical porous annulus embedded with fluid saturated porous medium for aiding is investigated. The annulus is imposed by 20%, 35% and 50% heater length at the bottom, mid and top sections of the annulus respectively. Darcy law with thermal non-equilibrium approach is considered. The governing partial differential equations are converted to simple algebraic equations using Finite Element Method (FEM). The effects of Peclet number Pe and conductivity ratio Kr on heat transfer and fluid flow behaviour are examined and it is found that for lower conductivity ratio, the heat transfer rate was higher with the increase in the Peclet number Pe, whereas this trend reversed when thermal conductivity ratio Kr is increased.

AB - Mixed convection flow in a vertical porous annulus embedded with fluid saturated porous medium for aiding is investigated. The annulus is imposed by 20%, 35% and 50% heater length at the bottom, mid and top sections of the annulus respectively. Darcy law with thermal non-equilibrium approach is considered. The governing partial differential equations are converted to simple algebraic equations using Finite Element Method (FEM). The effects of Peclet number Pe and conductivity ratio Kr on heat transfer and fluid flow behaviour are examined and it is found that for lower conductivity ratio, the heat transfer rate was higher with the increase in the Peclet number Pe, whereas this trend reversed when thermal conductivity ratio Kr is increased.

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