Discussion of “Turbulent Open-Channel Flows: Drop-Generation and Self-Aeration” by Martin Rein

The author presented an original approach of the problem of self-aeration in spillway chute. He should be congratulated for his challenging development. The work is helpful in gaining a better understanding of the spillway chute aeration. The discusser wishes to add further information for completeness. Important references are missing and large-scale data were omitted.