Title :
Pitching motion characteristics of a supersonic missile using CFD
Author :
Tieying Jiang ; Xiuling Ji
Author_Institution :
Nat. Key Lab. of Mechatron. Eng. & Control, Beijing Inst. of Technol., Beijing, China
fDate :
Aug. 31 2013-Sept. 2 2013
Abstract :
A computational study of the pitching motion characteristics for a supersonic missile is described in this paper. First, the pitching dynamic derivatives of Basic Finner Missile (BFM) have been calculated and compared with the available experimental data at Mach number from 1.5 to 2.5 and are found to be generally in good agreement. The results demonstrate that the method can provide an accurate and viable approach for this problem. Then, Computational Fluid Dynamics (CFD) modeling and analysis of the supersonic missile have been conducted to determine the pitching motion characteristics at Mach number 2.5 under different reduced frequency and the pitch amplitude. The results show that the reduce frequency has some effect on the dynamic derivatives, and the dynamic characteristics change with the increase of the amplitude. The absolute value of the pitch damping moment coefficient and steady pitch moment coefficient firstly increases with the pitch amplitude and then decreases getting maximum value at about 30 degree.
Keywords :
Mach number; computational fluid dynamics; damping; flow simulation; missiles; supersonic flow; CFD; Mach number; basic Finner missile; computational fluid dynamics; pitch amplitude; pitch damping moment coefficient; pitching motion characteristics; steady pitch moment coefficient; supersonic missiles; Analytical models; Missiles; CFD; Pitching motion; dynamic derivatives; supersonic;
Conference_Titel :
Modelling, Identification & Control (ICMIC), 2013 Proceedings of International Conference on
Conference_Location :
Cairo
Print_ISBN :
978-0-9567157-3-9