Mixed convection opposing flow in porous annulus

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

doi:10.1063/1.4952375

Mixed convection opposing flow in porous annulus

J. N. Salman Ahmed, Sarfaraz Kamangar, Abdullah A.A.A. Al-Rashed^*, 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

1 Citation (Scopus)

Abstract

The current work investigates the mixed convection flow in a vertical porous annulus embedded with fluid saturated porous medium. The annulus is isothermally heated discretely at 20%, 35% and 50% of the height of cylinder at the center of annulus. Darcy law with thermal non-equilibrium approach is considered. The governing partial differential equations are solved using Finite Element Method (FEM). The effects of Peclet number Pe and conductivity ratio Kr on heat transfer and fluid flow is discussed It is found that the applied velocity in the downward direction, in case of an opposing flow, does not allow the thermal energy to reach from a hot to a cold surface.

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/10.1063/1.4952375
Publication status	Published - Jun 8 2016
Event	International Conference of Numerical Analysis and Applied Mathematics 2015, ICNAAM 2015 - Rhodes, Greece Duration: Sept 23 2015 → Sept 29 2015

Other

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

Keywords

Finite Element Method
Mixed convection
Opposing flow
Thermal non-equilibrium

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1063/1.4952375

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Salman Ahmed, JN, Kamangar, S, Al-Rashed, AAAA, Khan, TMY & Khaleed, HMT 2016, Mixed convection opposing flow in porous annulus. in International Conference of Numerical Analysis and Applied Mathematics 2015, ICNAAM 2015. vol. 1738, 480139, American Institute of Physics Inc., International Conference of Numerical Analysis and Applied Mathematics 2015, ICNAAM 2015, Rhodes, Greece, 9/23/15. https://doi.org/10.1063/1.4952375

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title = "Mixed convection opposing flow in porous annulus",

abstract = "The current work investigates the mixed convection flow in a vertical porous annulus embedded with fluid saturated porous medium. The annulus is isothermally heated discretely at 20%, 35% and 50% of the height of cylinder at the center of annulus. Darcy law with thermal non-equilibrium approach is considered. The governing partial differential equations are solved using Finite Element Method (FEM). The effects of Peclet number Pe and conductivity ratio Kr on heat transfer and fluid flow is discussed It is found that the applied velocity in the downward direction, in case of an opposing flow, does not allow the thermal energy to reach from a hot to a cold surface.",

keywords = "Finite Element Method, Mixed convection, Opposing flow, Thermal non-equilibrium",

author = "{Salman Ahmed}, {J. N.} and Sarfaraz Kamangar and Al-Rashed, {Abdullah A.A.A.} and Khan, {T. M.Yunus} and Khaleed, {H. M.T.}",

year = "2016",

month = jun,

day = "8",

doi = "10.1063/1.4952375",

language = "English",

volume = "1738",

booktitle = "International Conference of Numerical Analysis and Applied Mathematics 2015, ICNAAM 2015",

publisher = "American Institute of Physics Inc.",

note = "International Conference of Numerical Analysis and Applied Mathematics 2015, ICNAAM 2015 ; Conference date: 23-09-2015 Through 29-09-2015",

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TY - GEN

T1 - Mixed convection opposing flow in porous annulus

AU - Salman Ahmed, J. N.

AU - Kamangar, Sarfaraz

AU - Al-Rashed, Abdullah A.A.A.

AU - Khan, T. M.Yunus

AU - Khaleed, H. M.T.

PY - 2016/6/8

Y1 - 2016/6/8

N2 - The current work investigates the mixed convection flow in a vertical porous annulus embedded with fluid saturated porous medium. The annulus is isothermally heated discretely at 20%, 35% and 50% of the height of cylinder at the center of annulus. Darcy law with thermal non-equilibrium approach is considered. The governing partial differential equations are solved using Finite Element Method (FEM). The effects of Peclet number Pe and conductivity ratio Kr on heat transfer and fluid flow is discussed It is found that the applied velocity in the downward direction, in case of an opposing flow, does not allow the thermal energy to reach from a hot to a cold surface.

AB - The current work investigates the mixed convection flow in a vertical porous annulus embedded with fluid saturated porous medium. The annulus is isothermally heated discretely at 20%, 35% and 50% of the height of cylinder at the center of annulus. Darcy law with thermal non-equilibrium approach is considered. The governing partial differential equations are solved using Finite Element Method (FEM). The effects of Peclet number Pe and conductivity ratio Kr on heat transfer and fluid flow is discussed It is found that the applied velocity in the downward direction, in case of an opposing flow, does not allow the thermal energy to reach from a hot to a cold surface.

KW - Finite Element Method

KW - Mixed convection

KW - Opposing flow

KW - Thermal non-equilibrium

UR - http://www.scopus.com/inward/record.url?scp=84984536125&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84984536125&partnerID=8YFLogxK

U2 - 10.1063/1.4952375

DO - 10.1063/1.4952375

M3 - Conference contribution

AN - SCOPUS:84984536125

VL - 1738

BT - International Conference of Numerical Analysis and Applied Mathematics 2015, ICNAAM 2015

PB - American Institute of Physics Inc.

T2 - International Conference of Numerical Analysis and Applied Mathematics 2015, ICNAAM 2015

Y2 - 23 September 2015 through 29 September 2015

ER -

Mixed convection opposing flow in porous annulus

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Keywords

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