Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
권호 표지
DOI QR코드

DOI QR Code

Prediction of Aerodynamic Stability Derivatives of Shell Configuration of Missile Using CFD Method

CFD를 이용한 유도탄 덮개 형상의 공력 미계수 예측

  • Kang, Eunji (The 1st Research and Development Institute, Agency for Defense Development)
  • 강은지 (국방과학연구소 제1기술연구본부)
  • Received : 2020.06.05
  • Accepted : 2020.07.10
  • Published : 2020.08.05
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, pitching stability derivatives of the conical shell configuration is predicted using commercial CFD code. Unsteady flow analysis with forced harmonic motion of the model is performed using overset mesh. The test is conducted about Basic finner missile configuration. The static and dynamic stability derivatives are good agreement with available experimental data. As the same way, a conical shell is analyzed in Mach number 1.6 and various reduced frequency. The static and dynamic derivatives are obtained from the time-pitching moment coefficient histories in each of four cases of mean angle of attack. The variation of reduced frequency is not affected static and dynamic derivatives. Increasing the mean angle of attack, static derivatives are increased slowly. Comparison of the Cm curves at the steady and unsteady state results shows that the Cm curve including the damping effect is lower than otherwise case, approximately 9-18 %.

Keywords

References

  1. M. Tai, S. Kang, S. Oh and D. Park, "Prediction of Pitching Dynamic Derivatives of Aircraft Using a Unsteady Sourse Doublet Panel Method," Journal of Computational Fluid Engineering, Vol. 24, No. 1, pp. 113-123, 2019. https://doi.org/10.6112/kscfe.2019.24.1.113
  2. J. Allen, M. Ghoreyshi, "Forced Motions Design for Aerodynamic Identification and Modeling of Generic Missile Configuration," Aerospace Science and Technology, Vol. 77, pp. 742-754, 2018. https://doi.org/10.1016/j.ast.2018.04.014
  3. S. Schmidt, D. M. Newman, "Estimation of Dynamic Stability Derivatives of Generic Aircraft," 17th Australasian Fluid Mechanics Conference, 2010.
  4. F. Wang, L. Chen, "Numerical Prediction of Stability Derivatives for Complex Configurations," Asia-Pacific International Symposium on Aerospace Technology, pp. 1561-1575, 2014.
  5. M. Mumtaz, A. Maqsood and S. Sherbaz, "Computational Modeling of Dynamic Stability Derivatives for Generic Airfoils," International Conference on Mathematics and Methmatics Education, pp. 1-5, 2016.
  6. M. A. Park, "Steady-State Computation of Constant Rotational Rate Dynamic Stability Derivatives," AIAA, Vol. 2000, No. 4321, pp. 503-517, 2000.
  7. E. Oktay, "CFD Predictions of Dynamic Derivatives for Missile," AIAA, Vol. 2002, No. 0276, pp. 1-10, 2002.
  8. H. Lee, H, Kong, B. Kim and S. Lee, "Prediction of Pitch and Roll Dynamic Derivatives Using CFD," The Korean Society for Aeronautical & Space Sciences, pp. 616-622, 2012.
  9. I. Shantz, "Dynamic and Static Stability Measurements of The basic Finner at Supersonic Speed," NAVORD Report 4516, 1960.
  10. Seimens Cooperation, "StarCCM User Guide," 2019.
  11. D. I. Greenwell, "Frequency Effect on Dynamic Stability Derivatives Obtained from Small-Amplitude Oscillatory Testing," Journal of Aircraft, Vol. 35, No. 5, pp. 776-783, 1998. https://doi.org/10.2514/2.2369