Numerical Modeling of Turbulent Reacting flow in Porous Media

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TORSHIZI M.; KHALEGHI H.; MOHAMMADZADEH K.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Paper Information

Journal: JOURNAL OF MECHANICAL ENGINEERING Year:2019 | Volume:48 | Issue:4 (85) Page(s): 77-85

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Title

Numerical Modeling of Turbulent Reacting flow in Porous Media

Author(s)

TORSHIZI M. | KHALEGHI H. | MOHAMMADZADEH K. | Issue Writer Certificate

Keywords

Porous burner

Turbulence

Reaction flow

double decomposition

non-thermal equilibrium

Abstract

In the present paper, the turbulent reacting flow within a porous media is modeled by developing a computer code. Separate energy equations for fluid and solid phases and the k-ε Turbulence equations have been applied by non-thermal equilibrium and double decomposition methods, respectively and the fuel consumption rate is obtained from one-step Arrhenius equation. Turbulence modeling helped to obtain closer results compared with experimental data. Turbulence caused an increase to the effect of diffusion and heat transfer in the preheat zone which resulted in a lower maximum temperature in the combustion zone. In the case of excess air combustion, no temperature difference is observed in the upstream zone. The results showed that with decreasing porosity in the combustion zone, the fluid temperature along the burner decreases. That is, for the porosities of 0. 95 and 0. 7 the maximum temperature is decreased by 16% and 18% respectively. The maximum temperature difference in the case of excess air of 67% is about 400K which occurs at x=0. 01m and for the case of no excess air is about 200K at x=0. 045m.

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APA: Copy

TORSHIZI, M., KHALEGHI, H., & MOHAMMADZADEH, K.. (2019). Numerical Modeling of Turbulent Reacting flow in Porous Media. JOURNAL OF MECHANICAL ENGINEERING, 48(4 (85) ), 77-85. SID. https://sid.ir/paper/269946/en

Vancouver: Copy

TORSHIZI M., KHALEGHI H., MOHAMMADZADEH K.. Numerical Modeling of Turbulent Reacting flow in Porous Media. JOURNAL OF MECHANICAL ENGINEERING[Internet]. 2019;48(4 (85) ):77-85. Available from: https://sid.ir/paper/269946/en

IEEE: Copy

M. TORSHIZI, H. KHALEGHI, and K. MOHAMMADZADEH, “Numerical Modeling of Turbulent Reacting flow in Porous Media,” JOURNAL OF MECHANICAL ENGINEERING, vol. 48, no. 4 (85) , pp. 77–85, 2019, [Online]. Available: https://sid.ir/paper/269946/en

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