Experimental study of UTM-LST generic half model transport aircraft

• Published in: IOP conference series. Materials Science and Engineering Vol. 152; no. 1; pp. 12007 - 12014
• Main Authors: Ujang, M I, Mat, S, Perumal, K, Mohd. Nasir, M N
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.10.2016
• Subjects: Aerodynamic characteristics; Aerodynamic configurations; Aerodynamic forces; Aerodynamics; Ailerons; Aircraft; Aircraft configurations; Aircraft control; Angle of attack; Deflection; Elevators (control surfaces); Flaps (control surfaces); Fluid flow; Low speed wind tunnels; Reynolds number; Separation; Transport aircraft
• ISSN: 1757-8981; 1757-899X
• DOI: 10.1088/1757-899X/152/1/012007

This paper presents the experimental results from the investigation carried out at the UTM Low Speed wind tunnel facility (UTM-LST) on a half model generic transport aircraft at several configurations of primary control surfaces (flap, aileron and elevator). The objective is to measure the aerodynamic forces and moments due to the configuration changes. The study is carried out at two different speeds of 26.1 m s and 43.1 m s at corresponding Reynolds number of 1 × 106 and 2 × 106, respectively. Angle of attack of the model is varied between -2o to 20o. For the flaps, the deflection applied is 0o, 5o and 10o. Meanwhile, for aileron and elevator, the deflection applied is between -10o and 10o. The results show the differences in aerodynamic characteristics of the aircraft at different control surfaces configurations. The results obtained indicate that a laminar separation bubble developed on the surface of the wing at lower angles of attack and show that the separation process is delayed when the Reynolds number is increased.