= Turbulence Closure = PALM offers different turbulence closures depending on the scope of the simulation. LES:: Per default, PALM is operated as an LES model using a subgrid-scale model to parameterize turbulence of size smaller than the grid size. //// RANS:: Switching on the RANS mode via the namelist paramter //[/wiki/doc/app/inipar#rans_mode rans_mode]//, PALM is operated as a RANS model. Now, all turbulence is parameterized using a turbulence model. //// Click on any icon below to get to the respective part of the documentation.\\\\ [[Image(button_les.png,120px,link=wiki:doc/tec/sgs)]] [[Image(button_rans.png,120px,link=wiki:doc/tec/turbulence_parameterization)]]