Investigating and evaluating the influence of drag ring diameter on the range of an ungovernable flying device in standard conditions
213 viewsDOI:
https://doi.org/10.54939/1859-1043.j.mst.78.2022.159-165Keywords:
Flying device; CFD; Drag ring.Abstract
The article builds a CFD simulation model to calculate the aerodynamic characteristics of the ungovernable flying device, then determine the aerodynamic functions corresponding to different values of the diameter of drag rings. With the received aerodynamic functions, the article solved the rocket's equation motion in the firing plane, thereby allowing to evaluate the influence of drag ring diameter on the firing range of the rocket. The accuracy of the calculation results from the motion equation is evaluated by comparing with the standard values in the artillery firing table about the range corresponding to the diameters of drag rings.
References
[1]. Konečný P., Le H.B., Nguyen H.M., Tran Q.T., Mai Q.H. and Ngo T.S, “Analysis of Basic Methods for Aerodynamic Characteristics Determination of MIsile Structure’s Components”. International Conference on Military Technologies 2019 (ICMT’19), Brno, Czech Republic, 2019.
[2]. “Đạn phản lực M21-ΟΦ-VN”. Tiêu chuẩn công nghiêp 06TCN743, 1999.
[3]. Sharma N. and Kumar R. “A Ready Reckoner of CFD for Wrap-around Fins”. INCAS Bulletin, vol. 11, Is. 2, pp. 155 - 170, 2019.
[4]. Khalil M., Abdalla H. and Kamal O., “Trajectory Prediction for a Typical Fin Stabilized Artillery Rocket”. In 13th International Conference on Aerospace Sciences & Aviation, Military Technical College, Kobry Elkobbah, Cairo, Egypt, 2009.
[5]. Lê Anh Dũng, Nguyễn Hữu Độ và Huỳnh Lương Nghĩa, “Lý thuyết bay và hệ thống điều khiển tên lửa phòng không”. Học viện Kỹ thuật Quân sự, 1998.
