Richtmyer-Meshkov Instability Induced Mixing Enhancement in the Scramjet Combustor with a Central Strut
Richtmyer-Meshkov Instability Induced Mixing Enhancement in the Scramjet Combustor with a Central Strut
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带中央支柱的超燃冲压发动机燃烧室中 Richtmyer-Meshkov 不稳定性引起的混合增强
DOI：
10.1155/2014/614189
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发表时间：
2014-01
影响因子：
2.1
通讯作者：
Bao, Wen
中科院分区：
文献类型：
--
作者：
Yang, Qingchun;Chang, Juntao;Bao, Wen
在具有中央支柱的液体燃料超燃冲压发动机中进行了 Richtmyer-Meshkov 不稳定性 (RMI) 引起的混合增强的实验和数值研究。为了在超燃冲压发动机中产生 RMI，在支柱喷射器下游采用横向高温喷射。与横向常温射流相比，高温射流对超音速气流的穿透力提高了60%。数值结果表明，RMI 现象显着提高了混合效率（高达 43%），这是引发化学反应所必需的。在燃烧室内进行了地面实验，从燃烧室壁压的角度验证了数值方法。特别是，实验结果表明，RMI 由于混合增强而有利于火焰稳定。
Experimental and numerical study of Richtmyer-Meshkov instability (RMI) induced mixing enhancement has been conducted in a liquid-fueled scramjet engine with a central strut. To generate the RMI in the scramjet engine, transverse high temperature jets are employed downstream the strut injector. Compared to the transverse ordinary temperature jet, the jet penetration into the supersonic airstream of high temperature jet increases by 60%. The numerical results indicate that the RMI phenomenon markedly enhances the mixing efficiency (up to 43%), which is necessary to initiate the chemical reactions. Ground experiments were carried out in the combustor, which verify the numerical method from the perspective of wall pressures of the combustor. In particular, the experiment results indicate that the RMI can benefit flame-holding due to the mixing enhancement.
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影响因子：
1.9
作者：
E. T. Curran
通讯作者：
E. T. Curran
再次冲击后 Richtmyer-Meshkov 湍流层的生长
影响因子：
4.6
作者：
Thornber B
通讯作者：
Thornber B
影响因子：
1.9
作者：
K. Kumaran;P. Behera;V. Babu
通讯作者：
K. Kumaran;P. Behera;V. Babu
影响因子：
4.6
作者：
F. Grinstein;A. Gowardhan;A. Wachtor
通讯作者：
F. Grinstein;A. Gowardhan;A. Wachtor
影响因子：
1.9
作者：
Baoxi Wei;Xu Xu-Xu;Shi Xinxing;Yang Yang-Yang
通讯作者：
Baoxi Wei;Xu Xu-Xu;Shi Xinxing;Yang Yang-Yang