Articles | Volume 12, issue 6
Geosci. Model Dev., 12, 2523–2538, 2019
https://doi.org/10.5194/gmd-12-2523-2019
Geosci. Model Dev., 12, 2523–2538, 2019
https://doi.org/10.5194/gmd-12-2523-2019
Development and technical paper
28 Jun 2019
Development and technical paper | 28 Jun 2019

Vertically nested LES for high-resolution simulation of the surface layer in PALM (version 5.0)

Sadiq Huq et al.

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Latest update: 30 Nov 2022
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Short summary
To study turbulence in heterogeneous terrain, high-resolution LES is desired. However, the desired resolution is often restricted by computational constraints. We present a two-way interactive vertical grid nesting technique that enables high-resolution LES of the surface layer. By employing a finer grid only close to the surface layer, the total computational memory requirement is reduced. We demonstrate the accuracy and performance of the method for a convective boundary layer simulation.