纳米尺度表面上明渠斜面流的运动特性
Movement characteristics of the inclined surface flow of the open channel on the nanoscale surface.
作者信息
Chen Yen-Chang, Yang Han-Chung
机构信息
Department of Civil Engineering, National Taipei University of Technology, Taipei, Taiwan, ROC.
Department of Marine Leisure Management, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan, ROC.
出版信息
Heliyon. 2023 Jun 26;9(7):e17677. doi: 10.1016/j.heliyon.2023.e17677. eCollection 2023 Jul.
This study investigates the water flow characteristics on a solid surface with nanoscale compared to a normal solid surface. The experiment uses a high-speed video system and Fiber-optic Laser Doppler Velocimetry to measure the flow condition of the droplet and velocity distribution profile in the inclined surface flow of the open channel, respectively. The results showed that the movement speed of water droplets on the nanoscale surface was about 2 times faster than on the normal surface. The mean error of each velocity profile was 0.6%. The results reveal that the velocity profile is not significantly influenced by whether the flume bottom is coated with nanoscale material or not in the inclined surface flow of the open channel.
本研究调查了与普通固体表面相比具有纳米尺度的固体表面上的水流特性。该实验分别使用高速视频系统和光纤激光多普勒测速仪来测量明渠倾斜表面流中液滴的流动状况和速度分布剖面。结果表明，纳米尺度表面上水滴的移动速度比普通表面上的快约2倍。每个速度剖面的平均误差为0.6%。结果表明，在明渠倾斜表面流中，水槽底部是否涂覆纳米材料对速度剖面没有显著影响。
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