Changes between Version 6 and Version 7 of palm4u

Timestamp:

Dec 14, 2017 1:18:59 PM (7 years ago)

Author:

maronga

Comment:

--

palm4u

@@ -24 +24 @@
 
 == RANS turbulence parameterization ==
-
+As alternative to the turbulence-resolving LES mode, PALM-4U offers a RANS-type turbulence parameterization. In more detail, a so-called TKE-
+ε−parameterization (Kato and Launder, 1993; Lopez et al., 2005) is implemented, which is based on two prognostic equations for the turbulence kinetic energy (TKE) and its dissipation rate ε.
 
 == Nesting and coupling to large-scale models ==
+PALM/PALM-4U has an interface that allows for using model output of larger-scale models as boundary conditions. The additional software package INIFOR is shipped with PALM and allows to process data output from COSMO (support for the ICON model chain will be added later) and provides suitable input data for PALM-4U. The processed data can then be used in PALM-4U either as Dirichlet boundary conditions (in RANS mode, default) or as additional tendency terms in the respective prognostic equations (LES mode with cyclic boundary conditions). 
 
+Moreover, a self-nesting ofPALM-4U is realized, allowing to use the model with a magnifier lens tool. Adaption of the already implemented
+model coupler for RANS-RANS nesting is currently under way. Moreover, in order to use COSMO model data with Dirichlet boundary conditions together with the LES mode, it will soon be possible to feed the COSMO data to PALM-4U in the RANS mode, and nest LES domains therein.
 
 == Land surface representation ==