Discussion of 'Experimental Study of Subcritical Dividing Flow in an Equal-Width, Four-Branch Junction' by Leonardo S. Nania, Manuel Gomez, Jose Dolz, Pau Comas, and Juan Pomares

摘要

The original paper provides a useful contribution to the topic of subcritical open-channel flow in a four-branch intersection. Coincidentally, a second paper on the same topic was published in another journal (Riviere et al. 2011) and there are sufficient points in common between those two papers to justify a comparison of the data. In attempting this comparison, the discussers have encountered several problems with the interpretation of the experimental conditions and the data presented by the authors.