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超声速燃烧室凹腔火焰稳定器的数值模拟
Numerical studies on cavity flame holders for supersonic combustors
查看参考文献8篇
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文摘
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为分析凹腔火焰稳定器在超声速燃烧室中的流动特性,运用数值模拟方法研究了凹腔对H2超声速燃烧的作用规律。通过对比分析不同凹腔长深比L/Du,后缘倾角θ,后缘深度D_d和H_2喷射位置Ljet对燃烧室性能的影响,发现凹腔的火焰稳定机制主要在于富含自由基的高温回流区;L/D_u=7-9,θ=30°,D_u/D_d=1.0和L_(jet)=24mm的燃烧室强化混合燃烧的性能较好,可以获得较高的燃烧效率和总压恢复。 |
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其他语种文摘
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The numerical simulation has been carried out to investigate the reactive flow characteristics for hydrogen supersonic combustion with recessed cavity. Several inclined cavities with a series value of length-to-depth ratio （L/D_u）, aft wall angle （θ）, aft wall depth （D_d）, and H_2 jet location （L_(jet)） were evaluated for mixing enhancement and combustion stability. It is noted that the hot recirculation zone full of radicals in cavity is the paramount mechanism for stable flame holding. Moreover, combustor with L/D_u = 7 - 9,θ= 30°, D_u/D_d = 1.0, and L_(jet)= 24 mm is recommended regarding combustion efficiency and total pressure recovery. |
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来源
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推进技术
,2007,28(2):135-140 【核心库】
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关键词
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超音速燃烧
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凹体
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燃烧性能
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氢
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数值仿真
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地址
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中国科学院力学研究所, 北京, 100080
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1001-4055 |
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学科
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航空 |
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文献收藏号
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CSCD:2858643
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参考文献 共
8
共1页
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1.
Rogers R C. Using a global hydrogen-air combustion model in turbulent reacting flow calculations.
AIAA J,1983,21(4)
|
CSCD被引
3
次
|
|
|
|
|
2.
陈方. 壁面凹腔强化H2超声速燃烧的数值模拟.
中国力学学术大会,2005
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CSCD被引
1
次
|
|
|
|
|
3.
ZHANG Xin-yu.
Development of a facility for model scramjet testing AIAA2001-1857,2001
|
CSCD被引
1
次
|
|
|
|
|
4.
Owens M G. Flame-holding configurations for kerosene combustion in a mach 1.8 airflow.
J of Propulsion and Power,1998,14(4)
|
CSCD被引
5
次
|
|
|
|
|
5.
Ortweth P.
Experimental and numerical investigation of hydrogen and ethylene combustion in a Mach 3-5 channel with a single injector AIAA 96-3245
|
CSCD被引
1
次
|
|
|
|
|
6.
Vinagradov V. Experimental investigation of kerosene fuel combustion in supersonic flow.
J of Propulsion and Power,1995,11(4)
|
CSCD被引
3
次
|
|
|
|
|
7.
Roudakov A S.
Flight testing an axisymmetric scramjet-russian recent advances IAF Paper S.4.485,1993
|
CSCD被引
1
次
|
|
|
|
|
8.
Adela B Y. Cavity flame-holders for ignition and flame stabilization in scramjets:an overview.
J of Propulsion and Power,2001,17(4)
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CSCD被引
65
次
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