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| Characterization of uncertainty in the measuring of bottom transport using ADCP Meire, D.; Claeys, S.; Plancke, Y. (2017). Characterization of uncertainty in the measuring of bottom transport using ADCP, in: Hydraulic Measurements and Experimental Methods 2017 Conference (HMEM 2017). pp. [1-6]
In: (2017). Hydraulic Measurements and Experimental Methods 2017 Conference (HMEM 2017). ASCE: [s.l.]. , meer
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| Documenttype: Congresbijdrage | |
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| Abstract |
ADCP's (different types) are installed above the sand bed. Measurements of bed load transport velocity from the bottom tracking feature are performed. Different settings of the instruments are tested and compared, together with a range of flow regimes. Also optical measuring techniques (camera’s, turbidity sensor) are used, both down-looking and side-looking. The side-looking cameras are installed to map the depth (and also velocity) of the mobile layer above the bed. Down-looking cameras are installed to look in a restricted view area to follow the individual sediment grains in the bottom-top layer. Combining, the pictures with PIV or PTV algorithms, the velocity of the individual sediment grains can be detected. The different measurement techniques are compared. |
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