1403/01/10
امین کاردگر

امین کاردگر

مرتبه علمی: استادیار
ارکید:
تحصیلات: دکترای تخصصی
اسکاپوس:
دانشکده: دانشکده مهندسی و فناوری
نشانی:
تلفن: 011-35305138

مشخصات پژوهش

عنوان
Numerical simulation of turbulent oscillating flow in porous media
نوع پژوهش
JournalPaper
کلیدواژه‌ها
Oscillating flow; Turbulence; Porous media; k-ε model; Volume averaging.
سال
2021
مجله Scientia Iranica
شناسه DOI
پژوهشگران Amin Kardgar ، Ali Jafarian

چکیده

Two macroscopic turbulent models, P-dL and N-K, have been proposed in recent years for simulating turbulent unidirectional flow in porous media. In this paper a modification on N-K model has been proposed for turbulent oscillating flow in porous media. To this purpose, Turbulent oscillating flow in porous media has been simulated in microscale employing a periodic array. The k-ε model was applied to solve turbulent oscillating flow in periodic array. Control volume approach has been used to discretize Navier-Stokes and k-ε equations and the well-established SIMPLE method has been conducted to deal with pressure and velocity coupling. To modify N-K model the effect of different parameters such as frequency and Reynolds number has been investigated and the constants in source terms of turbulent kinetic energy and its dissipation rate has been modified versus Re according to microscale results. In order to validate the new modified constants, the modified N-K model was applied to turbulent oscillating flow in porous media and results were compared to original N-K macroscopic model.