A criterion for delimiting active periods within turbulent flows

Physics – Geophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

3

Atmospheric Processes: Turbulence (4490), Mathematical Geophysics: Time Series Analysis (1872, 4277, 4475), Hydrology: Streamflow, Nonlinear Geophysics: Complex Systems, General Or Miscellaneous: Techniques Applicable In Three Or More Fields

Scientific paper

Delimiting effectively the extent of the major motions in atmospheric, tidal and fluvial turbulent flows is an important task for studies of mixing and particle transport. The most common method for this (quadrant analysis) is closely linked to the turbulent stresses but subdivides active periods in the flow into separate events. A method based on the pointwise Hölder characteristics of the velocity data is introduced in this paper and applied to extract the whole duration of the active periods, within which turbulence intensities and stresses are high for some of the time. The cross-correlation structure of the Hölder series permits a simple threshold to be adopted. The technique is tested on data from a turbulent wake in a wind tunnel and flow over a forest canopy.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

A criterion for delimiting active periods within turbulent flows does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A criterion for delimiting active periods within turbulent flows, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A criterion for delimiting active periods within turbulent flows will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1248258

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.