本文对注入气泡的黏弹性流体气液两相泡状流混合层流动进行实验研究,含气率为0.5%.与纯水气液两相流相似,气泡的注入也会削弱黏弹性流体中的涡结构,影响大涡的卷起.雷诺应力与涡量的分布规律类似,其峰值集中在混合层中心区域.注入气泡使混合层中心区域内的雷诺应力增大,峰值区域范围减小,添加聚合物的混合层中的雷诺应力峰值增大得更多.对涡量而言,注入气泡使峰值产生非常明显的减小,黏弹性流体的涡量所受的影响比纯水的要小.
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