Numerical Study of Flow Control on an Asymmetric Beveled Trailing Edge

Authors

M. M. Mosallem, Faculty of Engineering, Jazan UniversityFollow
Zienab A. Ahmed, Jazan University/Saudi ArabiaFollow

Abstract

The current research aims to numerically study the effect of inserting a small rod into the wake of an asymmetric beveled trailing edge on the hydrodynamic forces and wake structure. The test model used in this study is a blunt-faced flat plate of thickness H and having an asymmetrical 60° beveled trailing edge. A control rod with diameter d = 0.2 H was inserted into two different locations (Location (1); x/H = 0.18, y/H = 1.0) and (Location (2); x/H = 0.28, y/H = 0.9) behind the trailing edge. Unsteady 2D numerical simulation was performed at Reynolds number, Re_H= 1.09x10⁵ based on the plate thickness. Numerical results revealed that the wake structure changed considerably depending on control rod location. Drag reduction of 4.6% and 5.9 % was obtained for location (1) and (2), respectively. The C_L (rms) value decreased in around 87% for location (1) and 39.4% for location (2) compared to the case without control rod. The values of the Strouhal number for the two control rod locations are less than its value in the case of the trailing edge without the control rod. Maximum reduction in Strouhal number was 29 % for location (1).

Recommended Citation

Mosallem, M. M. and Ahmed, Zienab A. (2024) "Numerical Study of Flow Control on an Asymmetric Beveled Trailing Edge," Journal of Engineering Research: Vol. 8: Iss. 4, Article 17.
Available at: https://digitalcommons.aaru.edu.jo/erjeng/vol8/iss4/17