Numerical simulation of turbulent oscillating flow in porous media

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Kardgar A.; JAFARIAN A.

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Journal Paper

Paper Information

Journal: SCIENTIA IRANICA Year:2021 | Volume:28 | Issue:2 (Transactions B: Mechanical Engineering) Page(s): 743-756

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Information Journal Paper

Title

Numerical simulation of turbulent oscillating flow in porous media

Author(s)

Kardgar A. | JAFARIAN A. | Issue Writer Certificate

Keywords

Oscillating flow

Turbulence

Porous media

k 􀀀

" model

Volume averaging

Abstract

Two macroscopic turbulence models, namely P-dL and N-K, have been proposed in recent years to simulate turbulent unidirectional ow in porous media. In this paper, a modi cation to the N-K model was proposed for turbulent oscillating ow in porous media. To this end, the ow in porous media was simulated on a microscale using a periodic array. The k􀀀 " model was employed to solve turbulent oscillating ow in periodic array. A control volume approach was also used to discretize Navier-Stokes equations and k􀀀 " equations and the well-established SIMPLE method was applied to investigate pressure and velocity coupling. In order to modify the N-K model, the e ects of di erent parameters such as frequency and Reynolds number were studied and the constants in the source terms of turbulent kinetic energy and its dissipation rate were modi ed in comparison to Re according to the microscale results. To validate the new modi ed constants, a modi ed N-K model was applied to turbulent oscillating flow in porous media and the obtained results were compared to the original N-K macroscopic model.

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APA: Copy

Kardgar, A., & JAFARIAN, A.. (2021). Numerical simulation of turbulent oscillating flow in porous media. SCIENTIA IRANICA, 28(2 (Transactions B: Mechanical Engineering)), 743-756. SID. https://sid.ir/paper/988183/en

Vancouver: Copy

Kardgar A., JAFARIAN A.. Numerical simulation of turbulent oscillating flow in porous media. SCIENTIA IRANICA[Internet]. 2021;28(2 (Transactions B: Mechanical Engineering)):743-756. Available from: https://sid.ir/paper/988183/en

IEEE: Copy

A. Kardgar, and A. JAFARIAN, “Numerical simulation of turbulent oscillating flow in porous media,” SCIENTIA IRANICA, vol. 28, no. 2 (Transactions B: Mechanical Engineering), pp. 743–756, 2021, [Online]. Available: https://sid.ir/paper/988183/en

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