来流温度影响驻定爆轰波结构和性能的数值研究

董刚; 范宝春

doi:10.11858/gywlxb.2011.03.001

来流温度影响驻定爆轰波结构和性能的数值研究

doi: 10.11858/gywlxb.2011.03.001

董刚^1,2,,
范宝春¹

1.
南京理工大学瞬态物理国家重点实验室，江苏南京 210094；
2.
北京理工大学爆炸科学与技术国家重点实验室，北京 100081

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通讯作者:
董刚

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出版历程
- 收稿日期: 2010-06-24
- 修回日期: 2010-08-21
- 发布日期: 2011-06-15

The Numerical Investigations of Standing Detonation Wave Structure and Performance at the Different Initial Temperatures

DONG Gang^{1,2
,},
FAN Bao-Chun¹

1.
National Key Laboratory of Transient Physics, Nanjing University of Science & Technology, Nanjing 210094, China;
2.
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China

More Information

Corresponding author: DONG Gang

摘要

摘要: 采用数值模拟的方法研究了超音速来流撞击圆锥体诱导的驻定爆轰波的结构和性能，讨论了不同初始来流温度下，爆轰波结构和波后压力的变化。结果表明，随着来流初始温度的降低，爆轰波的增压比逐渐增加，有利于提高驻定爆轰发动机的推进性能。当初始温度较高时，爆轰波阵面呈现光滑平直的形态，而初始温度较低时，爆轰波呈现出明显的三波点结构，且温度越低，三波点数量越多排列越紧密，这些具有较高压力的三波点对爆轰波波后压力的变化起到了重要作用。
- 驻定爆轰 /
- 圆锥爆轰波 /
- 三波点 /
- 数值模拟
Abstract: The numerical simulations were performed to study the standing detonation wave structure and performance induced by a supersonic inflow impinging on a cone. The variations of detonation wave structure and the pressure behind the wave at the different initial temperatures of inflow were analyzed. The results show that the ratio of pressure increase is enhanced along with the decrease of the initial inflow temperature, which is benefit from the improvement of propulsion performance of oblique detonation wave engine. At the higher initial inflow temperature, the detonation wave front shows a smooth shape, while at the lower initial temperature, the triple structures appear at the front. The lower initial temperature is, the more number of the serried triple points are. These triple points with higher pressure contribute to the pressure variations behind the standing detonation wave.
- standing detonation wave /
- conical detonation wave /
- triple point /
- numerical simulations

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参考文献(17)

Kailasanath K. Review of Propulsion Applications of Detonation Waves [J]. AIAA J, 2000, 38(9): 1698-1708.

Dunlap R, Brehm R L, Nicholls J A. A Preliminary Study of the Application of Steady-State Detonative Combustion to a Reaction Engine [J]. Jet Propulsion, 1958, 28(7): 451-456.

Li C, Kailasanath K, Oran E S. Detonation Structures Behind the Oblique Shocks [J]. Phys Fluids, 1994, 6(4): 1600-1611.

Viguier C, Guerraud C, Desbordes D. H2-Air and CH4-Air Detonations and Combustions behind Oblique Shock Waves [A]//25th Symposium (Int) on Combustion [C]. Pittsburgh, PA, US: The Combustion Institute, 1994: 53-59.

Papalexandris M V. A Numerical Study of Wedge-Induced Detonations [J]. Combust Flame, 2000, 120(4): 526-538.

Pimentel C, Azevedo J, Figueira da Silva L F, et al. Numerical Study of Wedge Supported Oblique Shock Wave-Obilque Detonation Wave Transitions [J]. J Braz Soc Mechanical Science, 2002, 24(3): 149-157.

Teng H H, Zhao W, Jiang Z L. A Novel Oblique Detonation Structure and Its Stability [J]. Chin Phys Lett, 2007, 24(7): 1985-1988.

Figueira da Silva L F, Deshaies B. Stabilization of an Oblique Detonation Wave by a Wedge: A Parametric Numerical Study [J]. Combust Flame, 2000, 121(1-2): 152-166.

Sislian J P, Zhang F Y. Simulation of Conical Detonation Waves [A]//Symposium on Interdisciplinary Shock Wave Research [C]. Sendai, Japan, 2004: 449-461.

Dong G, Fan B C, Xie B. Two-Dimensional Simulation of Transient Detonation Process for H2-O2-N2 Mixture [J]. Chinese Journal of High Pressure Physics, 2004, 18(1): 40-46. (in Chinese)

董刚, 范宝春, 谢波. 氢气-空气混合物中瞬态爆轰过程的二维数值模拟 [J]. 高压物理学报, 2004, 18(1): 40-46.

Jiang X H, Fan B C, Dong G, et al. Numerical Simulation on the Flow Field of Rotating Detonation Wave [J]. Journal of Propulsion Technology, 2007, 28(4): 403-407. (in Chinese)

姜孝海, 范宝春, 董刚, 等. 旋转爆轰流场的数值模拟 [J]. 推进技术, 2007, 28(4): 403-407.

Viguier C, Gourara A, Desbordes D. Three-Dimensional Structure of Stabilization of Oblique Detonation Wave in Hypersonic Flow [A] // 27th Symposium (Inter) on Combustion [C]. Pittsburgh, PA, US: The Combustion Institute, 1998: 2207-2214.

Dong G, Fan B C, Li H Z. An Investigation on Instability of Deflagration and Detonation Induced by Conical Shock Wave [J]. Acta Armamentarii, 2010, 31(4): 401-408. (in Chinese)

董刚, 范宝春, 李鸿志. 圆锥激波诱导的爆燃和爆轰不稳定性研究 [J]. 兵工学报, 2010, 31(4): 401-408.

Choi J Y, Kim D W, Jeung I S, et al. Cell-Like Structure of Unstable Oblique Detonation Wave from High-Resolution Numerical Simulation [J]. Proceedings of the Combustion Institute, 2007, 31(2): 2473-2480.

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