Changes between Version 18 and Version 19 of doc/tec/sgs


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Timestamp:
Mar 27, 2020 1:24:31 PM (4 years ago)
Author:
maronga
Comment:

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  • doc/tec/sgs

    v18 v19  
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    139 '''Note that this implementation has not been thoroughly tested yet. It is highly recommended to pay special attention and compare model results to runs with the default Deardorff model. Tests so far have revealed that the modified Deardorff scheme achieves grid convergence at relatively coarse grid spacings in simulations of the stable boundary layer (see [#dai Dai et al., 2020]). Note, however, that for fine grid spacings the eddy diffusivities are likely to be much higher than with the default Deardorff scheme, which can lead to significantly smaller time steps and thus higher computational costs.'''
     139'''Note that this implementation has not been thoroughly tested yet. It is highly recommended to pay special attention and compare model results to runs with the default Deardorff model. Tests so far have revealed that the modified Deardorff scheme achieves grid convergence at relatively coarse grid spacings in simulations of the stable boundary layer (see [#dai Dai et al., 2020]) and thus allows for using coarse grid spacings under such conditions (while still resolving the largest eddies). Note, however, that for fine grid spacings the eddy diffusivities are likely to be much higher than with the default Deardorff scheme, which can lead to significantly smaller time steps and thus higher computational costs.'''
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    141141== [=#dynamic_sgs Dynamic subgrid-scale model] ==