Closure to "Effect of inflow conditions on the free-surface properties of hydraulic jumps" by S. FELDER, L. MONTANO, H. CUI, W. PEIRSON, and M. KRAMER, J. Hydraulic Res. 59(6), 2021, 1004–1017, https://doi.org/10.1080/00221686.2020.1866692.

The article discusses the effect of inflow conditions on the properties of hydraulic jumps. It acknowledges the contributions of previous studies on the topic, including the importance of boundary layer development and jump toe fluctuations on free-surface characteristics. The article also highlights the significance of measuring instantaneous velocities in aerated flows for a better understanding of flow processes. It presents an equation for calculating energy dissipation efficiency in hydraulic jumps and compares the results with previous studies. The article challenges the assumption that hydraulic jumps with fully developed inflow conditions have better energy dissipation, suggesting that there is no evidence to support this claim. [Extracted from the article]