Numerical investigation of flow around 4 square cylinders with different space

Abbas Alipanah kordlar¹ Soheil Nasrollahzadeh Sabet² Sina Rezaei³ Mehdi Zamani Ghermezkhalifeh⁴

1) Urmia university of technology Email:
2) Urmia university of technology Email:
3) Azad university of Tabriz Email:
4) Urmia university of technology Email:

Publication : 2nd International Conference on New Horizons in the Engineering Science 9th August 2018 / Istanbul Turkey / Yildiz Technical University(eng2018.ir)
Abstract :
Numerical models are important for evaluating fluid behavior and its effect on the fluid.[1] In this paper, numerical simulation of two Dimension (2D) aerodynamic effect of fluid flow on four square cylinders has been studied. On this point, drag and lift coefficients have been extracted from different levels of square cylinder to identify the spots with high potential and low volatility which is very important in buildings and validated by numerical and experimental results. In the turbulent stream regime, a different flow pattern was observed for different gap ratios and different Reynolds numbers and by turning the flow field into smaller regions , we will displays the pressure and velocity contours. Several elements have been studied for checking the grid size independence and the most suitable option for the final analysis has been used. This simulation has been investigated in 3 Reynolds (3000, 5000, 10000) and with 3 spacing ratio (G/D = 1, 2, 4) and we observe that we have a very good agreement with our validation.
Keywords : Square cylinder Spacing ratio Drag and Lift coefficient Wake interference Flow pattern