The multilevel stepped-wall chamber is designed to study the combustion stability control mechanism of the bulk-loaded liquid propellant gun (BLPG). The cold state experiment of the interaction of the high speed gas jet with liquid medium is conducted by means of high speed digital camera system. The simulated small caliber bulk-loaded liquid propellant combustion propulsion device is designed to study the effect of the stepped-wall chamber size on the combustion stability. The experimental results indicate that, the stepped-wall structure can restrain the expansion randomness of the Taylor cavity and leads smooth expansion at each step. In 4 stepped-wall chamber with ΔD/L = 3/40, the interior ballistic performance of BLPG is stable and the consistency of the p-t curves is good. Two-dimensional unsteady model is developed based on the BLPG combustion propulsion experiment. The numerical simulation results coincide well with the experiment.
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September 2011
Research Papers
Study of Bulk-Loaded Liquid Propellant Combustion Propulsion Processes With Stepped-Wall Combustion Chamber
Yonggang Yu,
Yonggang Yu
School of Energy and Power Engineering,
e-mail: yyg801@mail.njust.edu.cn
Nanjing University of Science and Technology
, Nanjing, China
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Xuexia Chang,
Xuexia Chang
School of Energy and Power Engineering,
Nanjing University of Science and Technology
, Nanjing, China
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Na Zhao,
Na Zhao
School of Energy and Power Engineering,
Nanjing University of Science and Technology
, Nanjing, China
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Shanshan Mang,
Shanshan Mang
School of Energy and Power Engineering,
Nanjing University of Science and Technology
, Nanjing, China
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Yanhuang Zhou
Yanhuang Zhou
School of Energy and Power Engineering,
Nanjing University of Science and Technology
, Nanjing, China
Search for other works by this author on:
Yonggang Yu
School of Energy and Power Engineering,
Nanjing University of Science and Technology
, Nanjing, China
e-mail: yyg801@mail.njust.edu.cn
Xuexia Chang
School of Energy and Power Engineering,
Nanjing University of Science and Technology
, Nanjing, China
Na Zhao
School of Energy and Power Engineering,
Nanjing University of Science and Technology
, Nanjing, China
Shanshan Mang
School of Energy and Power Engineering,
Nanjing University of Science and Technology
, Nanjing, China
Yanhuang Zhou
School of Energy and Power Engineering,
Nanjing University of Science and Technology
, Nanjing, China
J. Appl. Mech. Sep 2011, 78(5): 051001 (8 pages)
Published Online: July 27, 2011
Article history
Received:
November 20, 2010
Revised:
May 23, 2011
Online:
July 27, 2011
Published:
July 27, 2011
Citation
Yu, Y., Chang, X., Zhao, N., Mang, S., and Zhou, Y. (July 27, 2011). "Study of Bulk-Loaded Liquid Propellant Combustion Propulsion Processes With Stepped-Wall Combustion Chamber." ASME. J. Appl. Mech. September 2011; 78(5): 051001. https://doi.org/10.1115/1.4004279
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