Experimental result analysis for scaled model of UiTM tailless blended wing-body (BWB) Baseline 7 unmanned aerial vehicle (UAV)

AEROS Conference 2017

Nasir, R.E.M.^1 ; Ahmad, A.M.^1 ; Latif, Z.A.A.^1 ; Saad, R.M.^1 ; Kuntjoro, W.^1

Aviation Technology Research Group, Flight Technology and Test Centre (FTTC), Faculty of Mechanical Engineering, Universiti Teknologi MARA, Selangor, Shah Alam

40000, Malaysia^1

关键词: Blended wing body;    Blended wing body aircrafts;    Flat surfaces;    Future perspectives;    Lift to drag ratio;    Maximum lift coefficient;    Result analysis;    Scaled modeling;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/270/1/012005/pdf
DOI  :  10.1088/1757-899X/270/1/012005

来源: IOP

【 摘 要 】

Blended wing-body (BWB) aircraft having planform configuration similar to those previously researched and published by other researchers does not guarantee that an efficient aerodynamics in term of lift-to-drag ratio can be achieved. In this wind tunnel experimental study, BWB half model is used. The model is also being scaled down to 71.5% from the actual size. Based on the results, the maximum lift coefficient is found to be 0.763 when the angle is at 27.5° after which the model starts to stall. The minimum drag coefficient is 0.014, measured at zero angle of attack. The corrected lift-to-drag ratio (L/D) is 15.9 at angle 7.8°. The scaled model has a big flat surface that surely gives an inaccurate data but the data obtained shall give some insights for future perspective towards the BWB model being tested.