Effect of Momentum Ratio on the Mixing Performance of Unlike Split Triplet Injectors
Effect of Momentum Ratio on the Mixing Performance of Unlike Split Triplet Injectors
复制标题
动量比对异型分体三联喷射器混合性能的影响
DOI：
10.2514/2.6008
复制
发表时间：
2002
期刊：
影响因子：
--
通讯作者：
W. Yoon
中科院分区：
文献类型：
--
作者：
Y. Won;Yejin Cho;S. Lee;W. Yoon
对由不同的撞击分体式三联喷射器元件形成的喷雾的混合和混合控制燃烧效率进行了实验研究。通过使用惰性模拟液体进行冷流测试来检查混合质量。针对不同的喷射配置和不同的射流动量比进行了局部质量和混合比分布的测量。结果表明，射流动量比可以有效表征宏观混合的质量。具有侧向燃料喷射的不同分体三联体元件在混合方面优于具有中央燃料喷射的不同分体三联体元件或不同分体三联体元件。二次冲击似乎对混合程度起着重要作用。详细讨论了不同分裂三重态元件的混合特性及其对提高宏观混合效率的贡献。
Experimental investigation of mixing and mixing-controlled combustion efficiencies for sprays formed by unlike impinging split triplet injector elements was carried out. The quality of mixing was checked by performing cold-flow tests with inert simulant liquids. Measurements of local mass and mixture ratio distributions were made for different injection configurations and different jet momentum ratios. Results show that the quality of macroscopic mixing can be effectively characterized by the jet momentum ratio. The unlike split triplet element with lateral fuel injection is superior in mixing to either unlike doublet or unlike split triplet elements with central fuel injection. Secondary impingement appears to play a significant role in the extent of mixing. Mixing characteristics of the unlike split triplet element and its contribution to the promotion of macroscopic mixing efficiencies are discussed in detail.