Effects of Swirl and Skew Upon Supersonic Wall Jet in Crossflow
Effects of Swirl and Skew Upon Supersonic Wall Jet in Crossflow
复制标题
横流中涡流和偏斜对超音速壁射流的影响
DOI：
10.2514/2.5882
复制
发表时间：
2001
影响因子：
1.9
通讯作者：
S. E. Doerner
中科院分区：
文献类型：
--
作者：
A. Cutler;S. E. Doerner
提出了涡流和偏斜对从 e at 壁喷射到超音速气流中的超音速轻气体射流混合的影响的实验研究结果。测试在名义上相等的喷射物质量流量、总压力和喷射器喷嘴出口静压力下进行。数据包括使用锥体静压、皮托管、停滞温度和气体采样探头（带有气体分析系统）对几种不同涡流和偏斜情况下的气流横截面进行的调查。分析结果以确定混合效率和注入羽流中心的横向运动。组合涡流和偏斜对喷射物混合的影响是稍微增加近喷射场中的混合，但是涡流或偏斜对远下游混合的影响很小。漩涡和倾斜都会稍微降低穿透力。
The results of an experimental investigation of the effects of swirl and skew on the mixing of a supersonic light gas jet injected from a e at wall into a supersonic airstream are presented. Tests were at nominally equal injectant masse owrate, totalpressure,andinjectornozzleexitstaticpressure. Data includesurveysofcross-sectionalplanes of the e ow for several different cases of swirl and skew using cone static pressure, pitot, stagnation temperature, and gas sampling probes (with gas analysis system ). The results are analyzed to determine mixing efe ciency and lateral motions of the center of the injectant plume. The effect of combined swirl and skew on injectant mixing is to slightly increase mixing in the near e eld of injection, but there is little effect of either swirl or skew on mixing far downstream. Both swirl and skew slightly reduce penetration.