Author(s): Mehdi Adjami; Mehdi Shafieefar; Ahmad Shanehsazzadeh
Linked Author(s): Mehdi Shafieefar
Keywords: No Keywords
Abstract: A set of laboratory experiments of surf zone velocities (at SCWMRI wave research laboratory's semi-large-scale wave flume1) is used to study of/compare two common methods of estimating turbulence, ensemble averaging and frequency filtering. It was found that ensemble averaging produces inaccurate estimates if wave irregularities are present. Consequently, it is critical to assess wave regularity before applying this method. Frequency filtering proves to be more accurate for slightly irregular waves, but determination of cutoff frequency is important and deserves further research.
Year: 2009