Numerical Simulation of Aerofoil with Flow Injection at the Upper Surface
Volume 12, No. 1, January 2020, Pages 98-110
Chua Bing Liang1, Akmal Nizam Mohammed1,*, Azwan Sapit1, Mohd Azahari Razali1, Mohd Faisal Hushim2, Amir Khalid2, Nurul Farhana Mohd Yusof3
1 Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, 86400, Parit Raja, Batu Pahat, Johor, Malaysia
2 Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Pagoh Higher Education Hub, 84600 Pagoh, Muar, Johor, Malaysia
3 School of Mechanical Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia
*Corresponding author: firstname.lastname@example.org
CFD; Flow Injection; Airfoil; NACA0012
Separation of the boundary layer over an airfoil causes a significant increase in the adverse pressure gradients and the losses of energy resulting in the reduction of the lift force and the increment of drag force. Therefore, delaying and eliminating flow separation is necessary to improve its aerodynamic characteristics. In this study, an injection of flow was introduced at the upper surface/suction side of the aerofoil to control the boundary layer separation effectively. Flow around the NACA0012 airfoil was examined, with the position of flow injection jet at 90° relative to the tangential surface of the airfoil at 20%, 50% and 80% of its chord length. The flow injection velocity was varied from 0%, 10%, 30% and 50% of the free stream velocity, which corresponds to 0, 2.5 x 10-4, 2.25 x 10-3 and 6.25 x 10-3 of the momentum coefficient. The results showed that the most suitable condition was at 10% of the blowing amplitude (2.5 x 10-4 of the momentum coefficient) of flow injection at the trailing edge, which was around 80% of the chord length at the upper surface/suction side. This configuration can successfully increase the lift force and decrease the drag force of the aerofoil at the angle equal to or larger than a stall angle of 16° compared to the baseline aerofoil.
CITE THIS ARTICLE
Chua, Bing Liang, et al. “Numerical Simulation of Aerofoil with Flow Injection at the Upper Surface.” CFD Letters 12.1 (2020): 98-110.
Chua, B. L., Akmal Nizam, M., Azwan, S., Mohd Azahari, R., Mohd Faisal, H., Amir, K. & Nurul Farhana, M. Y.(2020). Numerical Simulation of Aerofoil with Flow Injection at the Upper Surface. CFD Letters, 12(1), 98-110.
Chua Bing Liang, Akmal Nizam Mohammed, Azwan Sapit, Mohd Azahari Razali, Mohd Faisal Hushim, Amir Khalid and Nurul Farhana Mohd Yusof.”Numerical Simulation of Aerofoil with Flow Injection at the Upper Surface.” CFD Letters. 12, no. 1 (2020): 98-110.
Chua, B.L., Akmal Nizam, M., Azwan, S., Mohd Azahari, R., Mohd Faisal, H., Amir, K., and Nurul Farhana, M.Y., 2020. Numerical Simulation of Aerofoil with Flow Injection at the Upper Surface. CFD Letters 12(1), pp. 98-110.
Chua BL, Akmal Nizam M, Azwan S, Mohd Azahari R, Mohd Faisal H, Amir K, Nurul Farhana MY. Numerical Simulation of Aerofoil with Flow Injection at the Upper Surface. CFD Letters. 2020;12(1): 98-110.
REFERENCES Mohd Kamil, Muhammad Anas. “Numerical Simulation of Airflow over Three Different Types of Airfoil.”. B.Eng. Thesis, Universiti Tun Hussein Onn Malaysia, 2017.
 Patel, Karna S., Saumil B. Patel, Utsav B. Patel, and Ankit P. Ahuja. “CFD Analysis of an Aerofoil.” International Journal of Engineering Research 3, no. 3 (2014): 154-158.
 Mahmud, Md Shamim. “Analysis of Effectiveness of an Airfoil with Bi-camber Surface.” International journal of Engineering and Technology 3, no. 5 (2013): 569-577.
 Jain, Shubham, Nekkanti Sitaram, and Sriram Krishnaswamy. “Computational investigations on the effects of Gurney flap on airfoil aerodynamics.” International scholarly research notices 2015 (2015): 1-11.
 Siauw, W. L., and J. P. Bonnet. “Transient phenomena in separation control over a NACA 0015 airfoil.” International Journal of Heat and Fluid Flow 67 (2017): 23-29.
 Shan, Hua, Li Jiang, and Chaoqun Liu. “Direct numerical simulation of flow separation around a NACA 0012 airfoil.” Computers & fluids 34, no. 9 (2005): 1096-1114.
 James, Sandeep Eldho, Abhilash Suryan, Jiss J. Sebastian, Abhay Mohan, and Heuy Dong Kim. “Comparative study of boundary layer control around an ordinary airfoil and a high lift airfoil with secondary blowing.” Computers & Fluids 164 (2018): 50-63.
 Lee, Sang, Eric Loth, and Holger Babinsky. “Normal shock boundary layer control with various vortex generator geometries.” Computers & Fluids 49, no. 1 (2011): 233-246.
 Huang, L., P. G. Huang, R. P. LeBeau, and Th Hauser. “Numerical study of blowing and suction control mechanism on NACA0012 airfoil.” Journal of aircraft 41, no. 5 (2004): 1005-1013.
 Prakash, Bhanu, Fernando Mellibovsky Elstein, and Josep Maria Bergadà Granyó. “Parametric analysis of active flow control using steady suction and steady blowing.” In Proceedings of the 17th International Conference on Computational and Mathematical Methods in Science and Engineering, CMMSE 2017, Costa Ballena (Rota), Cádiz, Spain, July 4-8, 2017, pp. 1712-1721. 2017.
 Deng, Shutian, Li Jiang, and Chaoqun Liu. “DNS for flow separation control around an airfoil by pulsed jets.” Computers & Fluids 36, no. 6 (2007): 1040-1060.
 De Giorgi, M. G., C. G. De Luca, A. Ficarella, and F. Marra. “Comparison between synthetic jets and continuous jets for active flow control: application on a NACA 0015 and a compressor stator cascade.” Aerospace Science and Technology 43 (2015): 256-280.
 You, D., and P. Moin. “Active control of flow separation over an airfoil using synthetic jets.” Journal of Fluids and Structures 24, no. 8 (2008): 1349-1357.
 Zhao, Guoqing, and Qijun Zhao. “Parametric analyses for synthetic jet control on separation and stall over rotor airfoil.” Chinese Journal of Aeronautics 27, no. 5 (2014): 1051-1061.
 Lefebvre, A., B. Dano, W. B. Bartow, M. D. Fronzo, and GeCheng Zha. “Performance and energy expenditure of coflow jet airfoil with variation of mach number.” Journal of Aircraft 53, no. 6 (2016): 1757-1767.
 Abinav, R., Nandu R. Nair, P. Sravan, Pradeesh Kumar, and S. R. Nagaraja. “CFD Analysis of Co Flow Jet Airfoil.” Indian Journal of Science and Technology 9 (2016): 45.
 Yousefi, Kianoosh, S. Reza Saleh, and Peyman Zahedi. “Numerical study of flow separation control by tangential and perpendicular blowing on the NACA 0012 airfoil.” International Journal of Engineering 7, no. 1 (2013): 10-24.
 Paisal, Muhammad Sufyan Amir. “Numerical Simulation of Flow Over Airfoil Using Open Source Algorithm.” PhD diss., Universiti Tun Hussein Onn Malaysia, 2016.
 Hakim, Muhammad Syahmi Abdul, Mastura Ab Wahid, Norazila Othman, Shabudin Mat, Md Shuhaimi Mansor, Nizam Dahalan, and Wan Khairuddin Wan Ali. “The Effects of Reynolds Number on Flow Separation of Naca Aerofoil.” Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 47, no. 1 (2018): 56-68.