Effect of ground proximity on the flow over STOL CH750 multi-element airfoil

2nd International Conference on Computational Fluid Dynamics in Research and Industry

力学;计算机科学;工业技术

Abdullah, Aslam^1 ; Ammar Kamsani, Muhamad^1 ; Abdullah, Kamil^2

Department of Aeronautical Engineering, Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, Johor, Malaysia^1

Department of Energy and Thermofluids Engineering, Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, Johor, Malaysia^2

关键词: Aero-dynamic performance;    Aerodynamic characteristics;    Computational calculations;    Deflection angles;    Grid generation;    High pressure air;    Multi element airfoils;    Short take-off and landings;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/243/1/012022/pdf
DOI  :  10.1088/1757-899X/243/1/012022

来源: IOP

【 摘 要 】

The paper presents the influence of ground distance on aerodynamic characteristics of the flow over short take-off and landing STOL CH750 aircraft multi-element airfoil at various flap angle of deflection. The angle of attack is kept constant throughout the computations. ANSYS is used for the grid generation and the computational calculation. Further investigation suggests the best range of deflection angle where the aerodynamic performance of the airfoil increases in the presence of ground. Furthermore, a cushion of high-pressure air region between the airfoil pressure side and the ground surface also emerges.