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Protective spur dike for scour mitigation of existing spur dikes
To alleviate the scour depth around a series of existing spur dikes (SDs), a protective SD located upstream of the first was experimentally investigated. To determine the optimal design parameters, various values, lengths, angles and the spacing of a protective SDs were experimentally tested under different clear-water conditions in a straight river reach and a fixed flow depth. To investigate the behaviour of the flow field around the SDs, acoustic Doppler velocimeter was used to measure instantaneous velocity components on a rough rigid bed. The results indicate that a properly designed protective SD is able to decrease the average of the maximum scour depth around the main SDs. The optimum design parameters of a protective SD are recommended for each length for a particular experiment.
Protective spur dike for scour mitigation of existing spur dikes
To alleviate the scour depth around a series of existing spur dikes (SDs), a protective SD located upstream of the first was experimentally investigated. To determine the optimal design parameters, various values, lengths, angles and the spacing of a protective SDs were experimentally tested under different clear-water conditions in a straight river reach and a fixed flow depth. To investigate the behaviour of the flow field around the SDs, acoustic Doppler velocimeter was used to measure instantaneous velocity components on a rough rigid bed. The results indicate that a properly designed protective SD is able to decrease the average of the maximum scour depth around the main SDs. The optimum design parameters of a protective SD are recommended for each length for a particular experiment.
Protective spur dike for scour mitigation of existing spur dikes
Karami, Hojat (author) / Ardeshir, Abdollah (author) / Behzadian, Kourosh (author) / Ghodsian, Masoud (author)
Journal of Hydraulic Research ; 49 ; 809-813
2011-12-01
5 pages
Article (Journal)
Electronic Resource
English
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