Author(s): Stuart Cameron; Kirill Horoshenkov; Miriam Castagna And Vladimir Nikora
Linked Author(s): Kirill Horoshenkov, Stuart Cameron
Keywords: Free-surface chromatic confocal sensor open-channel turbulence
Abstract: Despite the importance of free-surface fluctuations in rivers, many questions as to their nature and formation mechanisms remain unanswered. In this study, we make use of confocal chromatic distance sensors to assess free-surface fluctuations in an open-channel flume that has been optimised for this purpose. Our data show that the amplitude of free-surface fluctuations over a range of flow conditions scale with bed shear stress, and that surface fluctuations develop along the channel in a similar way to turbulent velocity fluctuations.
Year: 2025