Influence of microbubble diameter and distribution on frictional resistance reduction
Influence of microbubble diameter and distribution on frictional resistance reduction
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DOI：
10.1007/s007730200015
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发表时间：
2002-06
影响因子：
2.6
通讯作者：
Yasuhiro Moriguchi;H. Kato
中科院分区：
文献类型：
--
作者：
Yasuhiro Moriguchi;H. Kato
使用二维通道进行了微气泡减少摩擦阻力的调查。改变流速和空气注入量，并测量摩擦阻力的降低。摩擦阻力的减少随着平均孔隙比的增加而增加。当气泡直径改变时，对摩擦阻力降低的影响可以忽略不计。还研究了近壁气泡分布的影响。虽然它被认为是近壁的微气泡的影响很大，需要进一步的调查。
Investigations into frictional resistance reduction by microbubbles were carried out using a two-dimensional channel. The flow velocity and the amount of air injected were varied, and the frictional resistance reduction was measured. The frictional resistance reduction increased with increasing mean void ratio. When the bubble diameter was changed, the influence on frictional resistance reduction was negligible. The influence of bubble distribution near a wall was also investigated. Although it is thought that the influence of microbubbles near a wall is large, further investigations are required.