PIV Measurement of Turbulent Mixing Layer Flow with Polymer Additives
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- PIV Measurement of Turbulent Mixing Layer Flow with Polymer Additives
- 发表刊物：
- Journal of physics: conferences series
- 摘要：
- Based on experimental investigation of single-phase turbulent mixing layer flow with polymer additives, bubbly mixing layer was experimentally investigated by PIV. The velocity ratio between high and low speed is 4:1 and the Reynolds number based on the velocity difference of two steams and hydraulic diameter of the channel ranges is 73333. Gas bubbles with about 0.5% gas fraction were injected into pure water mixing layer with/without polymer additives from three different parts at the end of the splitter plate. The comparison between single phase and bubbly mixing layer shows clearly that the dynamic development of mixing layer is great influenced by the bubble injection. Similar with single phase, the Reynolds stress and vorticity still concentrate in a coniform area of central mixing flow field part and the width will increase with increasing the Reynolds number. Mean Reynolds stress will decrease with bubble injection in high Reynolds numbers and the decreasing of Reynolds stress with polymer additives is much more than pure water case.
- 合写作者：
- T. Ning, F. Guo, B. Chen, X. Zhang.
- 卷号：
- 147(1)
- 页面范围：
- 012050
- 是否译文：
- 否
- 发表时间：
- 2009-03-26