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  • Release notes
    • 2025
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    • Whiffle LES model
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  • v15
  • v14
  • v13
  1. Release notes

Whiffle LES model

Previous2023

Last updated 21 days ago

Below are the release notes for the Whiffle LES model. Curious about how the Whiffle LES model works? .

v15

  • Wind speed standard deviation, turbulence intensity and turbulence kinetic energy diagnostics now include their respective subgrid contributions.

  • Implementation of new planetary boundary layer (PBL) scheme for meso-scale simulations, improving the parameterization of boundary layer turbulence. This primarily improves the representation of the boundary layer during daytime in the meso-scale model, and by extension in the LES.

  • The surface characteristics (roughness length, etc.) within a meso-scale or LES grid box our now weighed by their respective fractional coverage within the grid box instead of taking the most common value.

v14

  • Resolved issue with retrieving terrain data in Alaska.

  • Fixed sign convention in veer variable of turbine output.

  • Fixed issue with initialisation of soil moisture/temperature that led to issues with the development of the day-time boundary layers, in some cases with strong spatial soil moisture gradients with values around the wilting point.

v13

  • Upgrade default subgrid configuration based on extensive verification and validation to reduce numerical artifacts and improve TI representation.

  • Full implementation of AspTurbines library on GPU, leading to significant speed-up of runs with many turbines.

  • Reduced wind turbine actuator disk filter width for more realistic wind turbine and wind farm representation.

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