DOI QR코드

DOI QR Code

Effect of Particle Size Distribution on the Sensitivity of Combustion Instability for Solid Rocket Motors

입자 크기 분포도를 고려한 고체로켓 모터의 연소 불안정 민감도 예측

  • Joo, Seongmin (Graduate School of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Kim, Junseong (Graduate School of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Moon, Heejang (School of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Ohm, Wonsuk (School of Mechanical Engineering, Yonsei University) ;
  • Lee, Dohyung (Advanced Propulsion Technology Center, Agency for Defense Development)
  • Received : 2015.07.16
  • Accepted : 2015.09.14
  • Published : 2015.10.01

Abstract

Prediction of combustion instability within a solid-propellant rocket motor has been conducted with the classical acoustic analysis. The effect of particle size distribution on the instability has been analyzed by comparing the log-normal distribution to the fixed mono-sized particle followed by a survey of motor length scale effect between the baseline model and small scale model. Particle damping effect was more efficient for the small scale motor which has a relatively high unstable mode frequencies. It was also revealed that the prediction results by considering the particle size distribution show an overall attenuation of fluctuating pressure amplitude with respect to the mono-sized case.

본 논문에서는 음향 불안정 해석 기법을 이용하여 알루미늄 입자가 내포된 고체로켓 모터의 연소 불안정 현상을 예측하였다. 특히, 알루미늄 입자들의 로그정규분포 대비 단일 크기의 입자 분포가 연소 불안정 감쇠에 미치는 영향을 비교하여 각각의 민감도를 분석하였으며 고체로켓 모터의 길이 스케일 변화에 따른 음향 감쇠 효과를 단일 입자 크기를 가정한 경우와 비교하였다. 입자에 의한 감쇠는 불안정 모드 주파수 대역이 상대적으로 고주파인 작은 스케일 모터에서 효과적이었으며, 실제 포집장치를 통해 도출된 입자 크기 분포도를 고려한 연소 불안정 예측이 단일 입자 크기로 가정한 예측 결과보다 큰 불안정 감쇠를 보였다.

Keywords

Acknowledgement

Supported by : 국방과학연구소

References

  1. Culick, F.E.C. and Yang, V., "Prediction of the Stability of Unsteady Motions in Solid Propellants Rocket Motors," AIAA Progress in Astronautics and Aeronautics, Vol. 143, pp. 719-779, 1992.
  2. Yoon, M.W. and Kim, K.M., "Case Study of Combustion Instability in Solid Propellant Rocket Motors," Korean Society for Aeronautical & Space Sciences, Vol. 31, No. 1, pp. 133-140, 2003.
  3. Zimmerman, G.A. and Ditore, M.J., "The Effect of Propellant Formulation Variables on Combustion Stability," APL The 1979 JANNAF Propulsion Meeting, Vol. 1, No. 1, pp. 83-99, 1979.
  4. Hermsen, R.W., "Aluminum Oxide Particle Size for Solid Rocket Motor Performance Prediction," Journal of Spacecraft and Rockets, Vol. 18, No. 6, pp. 483-490, 1981. https://doi.org/10.2514/3.57845
  5. Povinelli, L.A., "Particulate Damping in Solid-Propellant Combustion Instability," AIAA Journal, Vol. 5, No. 10, pp. 1791-1796, 1967. https://doi.org/10.2514/3.4306
  6. Blomshield, F.S., Nguyen, S., Matheke, H., Atwood, A. and Bui, T., "Acoustic Particle Damping of Propellants Containing Ultra- Fine Aluminum," 40th Joint Propulsion Conference and Exhibit, Fort Lauderdale, F.L., U.S.A, AIAA 2004-3722, July. 2004.
  7. Jeenu, R., Pinumalla, K. and Deepak, D., "Size Distribution of Particles in Combustion Products of Aluminized Composite Propellant," Journal of Propulsion and Power, Vol. 26, No. 4, pp. 715-723, 2010. https://doi.org/10.2514/1.43482
  8. Yoon, M.W., Bae, J.C. and Kim, Y.G., "Collection and Analysis of Al203 Particles in the Combustion Gas of the Solid Rocket Motor," Korean Society for Aeronautical & Space Sciences, Vol. 26, No. 5, pp. 170-176, 1998.
  9. Yoon, M.W. and Kang, K.T., "A Study on the Suppression of the Combustion Instability of the Solid Rocket Motor Using the Acoustic Damping Effect of the Particles," Korean Society for Aeronautical & Space Sciences, Vol. 27, No. 1, pp. 106-112, 1999.
  10. Kim, H.C., Kim, J.S., Moon, H.J., Sung, H.G., Lee, H.G., Ohm, W.S. and Lee, D.H., "Linear Stability Analysis for Combustion Instability in Solid Propellant Rocket," Journal of the Korean Society of Propulsion Engineers, Vol. 17, No. 5, pp. 27-36, 2013. https://doi.org/10.6108/KSPE.2013.17.5.027
  11. Culick, F.E.C., "Nonlinear Behavior of Acoustic Waves in Combustion Chambers," Acta Astronautica, Vol. 3, No. 9, pp. 715-734, 1976. https://doi.org/10.1016/0094-5765(76)90107-7
  12. Temkin, S. and Dobbins, R.A., "Attenuation and Dispersion of Sound by Particulate Relaxation Processes," The Journal of Acoustic Society of America, Vol. 40, No. 5, pp. 317-324, 1966. https://doi.org/10.1121/1.1910073
  13. Culick, F.E.C., "T-burner Testing of Metallized Solid Propellants," AFRPL-TR- 74-28, 1974.
  14. Blomshield, F.S., Stalnaker, R.A. and Beckstead, M.W., "Combustion Instability Additive Investigation," 35th Joint Propulsion Conference and Exhibit, Los Angeles, CA, U.S.A, AIAA 99-2226, June 1999.