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Title: Undular bore propagating on a rough invert at Fr = 1.2

Description: Undular bore on rough screens at Froude no. 1.2. Generation of the surge after gate closure and transformation of a breaking surge on the downstream smooth invert into an undular surge above the rough screens [1]. Duration: 12 s, Q= 58.3 l/s, do = 141.2 mm, So = 0, Rough screens, Gate opening after closure: 95 mm.


References: [1] Chanson, Hubert (2008). Turbulence in Positive Surges and Tidal Bores. Effects of Bed Roughness and Adverse Bed Slopes. Hydraulic Model Report CH68/08, Civil Engineering, The University of Queensland.

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Contributed By: Hubert Chanson

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