Changes between Version 11 and Version 12 of doc/tec/sgs
- Timestamp:
- Nov 20, 2018 11:29:21 AM (6 years ago)
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doc/tec/sgs
v11 v12 9 9 10 10 11 == Deardorff subgrid-scale model==11 == [=#deardorff_sgs Deardorff subgrid-scale model] == 12 12 13 13 In PALM, the default SGS model uses a 1.5-order closure according to [#deardorff Deardorff (1980)]. PALM applies the modified version of [#moeng Moeng and Wyngaard (1988)] and [#saiki Saiki et al. (2000)]. The closure is based on the assumption that the energy transport by SGS eddies is proportional to the local gradients of the mean quantities and reads … … 103 103 104 104 105 == Dynamic subgrid-scale model==105 == [=#dynamic_sgs Dynamic subgrid-scale model] == 106 106 107 107 The dynamic SGS model can be used as an alternative to the Moeng-Wyngaard version of the Deardorff model. In this case, ''K'',,m,, is calculated as