Velocity point-measurements

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Revision as of 19:33, 18 October 2021 by Djwain (talk | contribs)

Welcome to the velocity point-measurements subgroup!

This subgroup addresses best practices in obtaining turbulent kinetic energy dissipation rate estimates from time series of velocities measured at a point in space. These temporal measurements are converted into spectral observations in the wavenumber (space) domain before being fitted with a model spectrum to obtain turbulent kinetic energy dissipation.

Scope

The subgroup will provide recommendations on:

  1. data processing of raw measurements
  2. spectral computations
  3. quality control measures
  4. benchmark datasets for velocity measurements impacted and unaffected by surface waves

Although some work has been done in obtaining turbulence estimates from moored platforms, we will not be providing benchmark datasets at this time. However, appropriate references to existing literature will be included.

Our recommendations are intended to be applicable to measurements irrespective of the manufacturer provided the data is of sufficient quality for resolving the turbulence subrange of the velocity spectra.

The benchmark datasets are intended to be a resource that can be used by the community to evaluate routines in any programming language.