Articles | Volume 18, issue 11
https://doi.org/10.5194/gmd-18-3331-2025
https://doi.org/10.5194/gmd-18-3331-2025
Model description paper
 | 
06 Jun 2025
Model description paper |  | 06 Jun 2025

Potential-based thermodynamics with consistent conservative cascade transport for implicit large eddy simulation: PTerodaC3TILES version 1.0

John Thuburn

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Cited articles

Arakawa, A. and Lamb, V. R.: Computational design of the basic dynamical processes of the UCLA general circulation model, in: General Circulation Models of the Atmosphere, vol. 17 of Methods in Computational Physics, edited by: Chang, J., 173–265, Academic Press, ISBN 978-0124608177, 1977. a
Bartello, P. and Thomas, S. J.: The cost-effectiveness of semi-Lagrangian schemes, Mon. Weather Rev., 124, 2883–2897, 1996. a
Bendall, T., Wood, N., Thuburn, J., and Cotter, C. J.: A solution to the trilemma of the moist Charney-Phillips staggering, Q. J. Roy. Meteorol. Soc., 149, 262–276, 2023. a
Benoit, R.: On the integral of the surface layer profile-gradient functions, J. Appl. Meteorol., 16, 859–860, 1977. a
Bowen, P. and Thuburn, J.: Consistent and flexible thermodynamics in atmospheric models using internal energy as a thermodynamic potential. Part I: Equilibrium regime, Q. J. Roy. Meteorol. Soc., 148, 3730–3755, 2022a. a, b, c, d, e, f, g, h, i
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Short summary
A new computational fluid dynamics code for simulating the atmospheric boundary layer and convection is presented. Moist thermodynamics is formulated via thermodynamic potentials, avoiding inconsistencies that can be introduced with conventional approaches. Numerical methods typical of weather and climate models are used, with no explicit subgrid scheme. Results highlight some advantages (e.g. large time steps) and disadvantages (e.g. weak vertical fluxes near the surface) of this approach.
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