Detecting sediment concentration using contact image sensor

W. Yao, H. An, S. Draper, L. Cheng, M. Zhao, G. Tang

Research output: Chapter in Book/Conference paperConference paper

Abstract

This paper presents a new methodology to measure sediment concentration using the Contact Image Sensor in the boundary layer. The detectable range of the sediment concentration was found to be sensitive to the sediment particle size (d 50 ). It is found that in the siliceous sand mixture the CIS best works at the concentration range from 0.1∼50 kg/m 3 . The narrow sediment-laden layer induced by unidirectional steady current (with C > 10 kg/m 3 and average layer thickness ranging 3 mm∼17 mm) in the close vicinity of a sand bed was detected with the sensor at different flow intensities. And the stratification in the sediment concentration was observed to be in reasonable agreement with existing empirical predictions in the literature.

Original languageEnglish
Title of host publicationScour and Erosion IX - Proceedings of the 9th International Conference on Scour and Erosion, ICSE 2018
EditorsYeh Keh-Chia
PublisherCRC Press/Balkema
Pages605-611
Number of pages7
ISBN (Print)9780367074678
Publication statusPublished - 2019
Event9th International Conference on Scour and Erosion, ICSE 2018 - Taipei, Taiwan, Province of China
Duration: 5 Nov 20188 Nov 2018

Publication series

NameScour and Erosion IX - Proceedings of the 9th International Conference on Scour and Erosion, ICSE 2018

Conference

Conference9th International Conference on Scour and Erosion, ICSE 2018
CountryTaiwan, Province of China
CityTaipei
Period5/11/188/11/18

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