https://github.com/echeynet/mannmodel1994

Numerical implementation of the uniform-shear model by Mann (1994)
https://github.com/echeynet/mannmodel1994

coherence mann spectra uniform-shear wind

Last synced: 12 months ago
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Numerical implementation of the uniform-shear model by Mann (1994)

• Host: GitHub
• URL: https://github.com/echeynet/mannmodel1994
• Owner: ECheynet
• License: bsd-3-clause
• Created: 2020-03-22T09:13:32.000Z (about 6 years ago)
• Default Branch: master
• Last Pushed: 2022-12-12T20:08:23.000Z (over 3 years ago)
• Last Synced: 2025-04-11T17:49:18.161Z (about 1 year ago)
• Topics: coherence, mann, spectra, uniform-shear, wind
• Language: MATLAB
• Size: 269 KB
• Stars: 3
• Watchers: 0
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# Numerical implementation of the uniform-shear model

Matlab implementation of the uniform shear model by Mann (1994)

[![View Uniform shear model (Mann, 1994) on File Exchange](https://www.mathworks.com/matlabcentral/images/matlab-file-exchange.svg)](https://se.mathworks.com/matlabcentral/fileexchange/67055-uniform-shear-model-mann-1994)

[![DOI](https://zenodo.org/badge/249148606.svg)](https://zenodo.org/badge/latestdoi/249148606)

[![Donation](https://camo.githubusercontent.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)](https://www.buymeacoffee.com/echeynet)

## Summary

The computation of the one-point spectra, co-spectra and coherence of turbulent wind is conducted using the uniform-shear model from Mann (1994) [1]. The goal is to describe the spatial structure of stationary homogeneous turbulence under a neutral atmospheric stratification using only 3 adjustable parameters.

## Content

The present submission contains:

- The function MannTurb.m that computes the sheared spectral tensor

- The function MannCoherence that computes the wind co-coherence

- A LiveScript for the example file

- A data file GreatBeltSpectra.mat that contains the wind spectra from the Great belt bridge experiment for comparison with the computed spectra.

Any question, comment or suggestion is warmly welcomed.

## References

[1] Mann, J. (1994). The spatial structure of neutral atmospheric surface-layer turbulence. Journal of fluid mechanics, 273, 141-168.