DOI QR코드

DOI QR Code

Numerical Study of Ablation Phenomena of Flame Deflector

  • Lee, Wonseok (Missile Research Institute, Agency for Defense Development) ;
  • Yang, Yeongrok (Missile Research Institute, Agency for Defense Development) ;
  • Shin, Sangmok (Missile Research Institute, Agency for Defense Development) ;
  • Shin, Jaecheol (Missile Research Institute, Agency for Defense Development)
  • Received : 2021.07.09
  • Accepted : 2021.09.15
  • Published : 2021.12.31

Abstract

A flame deflector prevents a launch system from thermal damage by deflecting the exhaust flame of the launch vehicle. During the deflection of the flame, the flame deflector is subjected to a high-temperature and high-pressure flow, which results in thermal ablation damage at the surface. Predicting this ablation damage is an essential requirement to ensure a reliable design. This paper introduces a numerical method for predicting the ablation damage phenomena based on a one-way fluid-structure interaction (FSI) analysis. In the proposed procedure, the temperature and convective heat transfer coefficient of the exhaust flame are calculated using a fluid dynamics analysis, and then the ablation is calculated using a finite element analysis (FEA) based on the user-subroutine UMESHMOTION and Arbitrary Lagrangian-Eulerian (ALE) adaptive mesh technique in ABAQUS. The result of such an analysis was verified by comparison to the ablation test result for a flame deflector.

Keywords

References

  1. H. Oh, S. Kang, D. Kim, J. Lee, H. Um, and H. Huh, "Conceptual design of KSLV-II launch complex flame deflector," 2014 KSPE Spring Conference, pp. 405-410, 2014.
  2. Y. G. Kim and K. C. Kim, "FSI analysis on wind turbine blade," Trans. Korean Soc. Mech. Eng. B, pp. 2368-2371, 2007.
  3. J. B. Ko, M. K. Seo, K. H. Lee, B. K. Beak, and S. H. Cho, "A study on the 1-way FSI analysis for shutter of side jet thruster," Trans. Korean Soc. Mech. Eng. A, vol. 38, no. 12, pp. 1359-1365, 2014. https://doi.org/10.3795/KSME-A.2014.38.12.1359
  4. M. Kang, D. Park, and S. Lee., "The study of aerodynamic about high-speed projectiles using fluid structure interaction analysis," J. Aerosp. Syst. Eng., vol. 6, no. 4, pp. 12-17, 2012. https://doi.org/10.20910/JASE.2012.6.4.012
  5. Y. Wang, N. Shen, G. K. Befekadu, and C. L. Pasiliao, "Modeling pulsed laser ablation of aluminum with finite element analysis considering material moving front," Int. J. Heat. Mass. Tran., 113, 1246-1253, 2017. https://doi.org/10.1016/j.ijheatmasstransfer.2017.06.056
  6. H. Cheon, et al., "Prediction of wear profile of tire using steady-state rolling analysis method," KSAE 2009 Annual conference, pp. 1668-1671, Nov, 2009.
  7. K. Y. Hwang and J. Y. Bae, "Thermal response modeling of thermal protection materials and application trends of commercial codes for flow-thermal-structural analysis," J. Korean Soc. Propul. Eng., vol. 23, no. 6, pp. 59-71, 2019. https://doi.org/10.6108/KSPE.2019.23.6.059
  8. Y. Ro, S. Seok, and S. Jeong, "An evaluation on thermal-structural behavior of nozzle assembly during burning time," J. Korean Soc. Propul. Eng., vol. 22, no. 4, pp. 36-43, 2018. https://doi.org/10.6108/KSPE.2018.22.4.036
  9. C. Lee, et al., "FSbi simulation for solid propellant rocket interior with flame propagation delay and secondary burning," KIMST Annual Conference Proceedings, pp. 1575-1576, July, 2014.
  10. M. Lee, "Development of 3-Dim FEM multi-material hydrocode," J. Korea Inst. Mil. Sci. Technol., vol. 11, no. 5, pp. 116-123, 2008.
  11. H. R. Thomas and Z. Zhou, "Minimum time-step size for diffusion problem in FEM analysis," Int. J. Number. Meth. Eng., vol. 40, pp. 3865-3880, 1997. https://doi.org/10.1002/(SICI)1097-0207(19971030)40:20<3865::AID-NME246>3.0.CO;2-C
  12. E. H. Zhang, Z. B. Kim, and H. J. Joo, "Ablative mechanism of SiC coated carbon/carbon composites with ratio of oxygen to fuel at combustion test," J. Korean Ind. Eng. Chem., vol. 18, no. 3, pp. 227-233, 2007.
  13. B. Kawecki and P. Jerzy, "Numerical results quality in dependence on ABAQUS plane stress elements type in big displacements compression test," Appl. Comp. Sci., vol. 13, no. 4, pp. 56-64, 2017. https://doi.org/10.35784/acs-2017-29