Modeling a washout of dams
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چکیده
Worldwide 83% of large dams are embankment structures (ICOLD, 1984), and the proportion is even greater for small dams. Embankment overtopping and breach is an important issue, and the Discusser congratulates the Author for his worthwhile contribution which complements the comprehensive study of Coleman et al. (2002). This discussion is focused on the breach development stage. It is shown that the ‘hourglass’ profile is in fact a constant energy state (or minimum energy loss inlet design) for which simple calculations compare favourably with prototype breach flow observations.
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