Articles | Volume 14, issue 1
Geosci. Model Dev., 14, 323–336, 2021
https://doi.org/10.5194/gmd-14-323-2021
Geosci. Model Dev., 14, 323–336, 2021
https://doi.org/10.5194/gmd-14-323-2021

Development and technical paper 22 Jan 2021

Development and technical paper | 22 Jan 2021

Implementation of a synthetic inflow turbulence generator in idealised WRF v3.6.1 large eddy simulations under neutral atmospheric conditions

Jian Zhong et al.

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Cited articles

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Berkooz, G., Holmes, P., and Lumley, J. L.: The proper orthogonal decomposition in the analysis of turbulent flows, Annu. Rev. Fluid Mech., 25, 539–575, https://doi.org/10.1146/annurev.fl.25.010193.002543, 1993. 
Chu, X., Xue, L. L., Geerts, B., Rasmussen, R., and Breed, D.: A Case Study of Radar Observations and WRF LES Simulations of the Impact of Ground-Based Glaciogenic Seeding on Orographic Clouds and Precipitation. Part I: Observations and Model Validations, J. Appl. Meteor. Climatol., 53, 2264–2286, https://doi.org/10.1175/jamc-d-14-0017.1, 2014. 
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Short summary
A synthetic inflow turbulence generator was implemented in the idealised Weather Research and Forecasting large eddy simulation. The inflow case yielded a mean velocity profile and second-moment profiles that agreed well with those generated using periodic boundary conditions, after a short adjustment distance. This implementation can be extended to a multi-scale seamless nesting simulation from a meso-scale domain with a kilometre-scale resolution to LES domains with metre-scale resolutions.