PIV Measurement of Supersonic Swirling Jet
PIV Measurement of Supersonic Swirling Jet
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超音速旋流射流PIV测量
DOI：
10.3154/jvs.22.1supplement_189
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
G. Masuya
中科院分区：
文献类型：
--
作者：
E. Kitamura;M. Matsumoto;S. Koike;G. Masuya
为强化超燃冲压发动机燃烧室的空燃混合，对涡流超音速喷油进行了研究。研究了超音速旋转射流与PIV的混合强化效果。在用PTV测量超音速流动时，颗粒的流动跟踪是非常重要的，特别是当它们穿过激波时。在这项工作中，颗粒的大小是通过重力分离来确定的。通过测量马赫盘下游的速度响应来检测颗粒的响应。这些结果保证了PIV系统的准确性。PIV对有和没有涡流的两种情况下的欠膨胀射流进行了检查。结果表明，有旋转射流的混合比没有旋转射流的混合要好。
Supersonic fuel injection with swirl is investigated to enhance the air-fuel mixing in scramjet combustors. We studied the effect of supersonic swirling jet for mixing enhancement with a PIV. In measurement of supersonic flow with a PTV, it is important for particles to track the flow, particularly when they pass through the shock wave. In this work, the size of particles was specified by gravitational separation. The response of the particles was examined by measuring velocity response downstream of a Mach disk. These results guaranteed the accuracy of the PIV system. Under-expansion jets in both cases with and without swirl were examined by the PIV. We got the result that the swirling jet mixed better than none swirling jet.