= PALM = [[TracNav(toc)]] PALM is a large-eddy simulation (LES) model for atmospheric and oceanic flows which is especially designed for performing on massively parallel computer architectures. PALM is free software. It can be redistributed and/or modified under the terms of the GNU General Public License (v3). {{{ #!div style="align:'left'; width: 300px; border: 0px solid; float:right" [[Image(htdocs:gallery/palm_logo_200px.jpg,nolink)]] }}} '''Some of PALM's highlights are''' * excellent scaling, so far tested up to 32,000 cores * on-the-fly data analysis (during model runs) in order to avoid I/O bottlenecks * topography realized on Cartesian grid (allows for steep topography) * interactive land surface model, coupled to the RRTMG radiation code * non-cyclic horizontal boundary conditions including turbulent inflow * wind turbine model (ADM-R) is implemented * code can be switched to ocean version with salinity equation and equation of state for seawater * embedded parallelized Lagrangian particle model for various applications (footprint calculation, simulation of cloud droplet growth, visualization, etc.) * interface allowing users to plug in their own code extensions without modifying the default code * advanced shell scripts for installing and running the code in interactive and batch mode are available * code is permanently maintained and improved by the PALM group and other users; code management is based on subversion PALM is regularly tested. The test status of the current revision is: [[Image(https://testserver.palm-model.org/buildStatus/icon?job=palm_trunk)]] More details [[wiki:doc/tec/testsuite|here]] ---- '''PALM news''' {{{#!comment ############################################# ## NEWS RULES: This section contains only ## ## news, that are not older than 1 year ## ############################################# }}} '''[ 2017-11-22 ]''' ''The Karl Doetsch Young Scientist Award ''([[https://www.tu-braunschweig.de/forschung/zentren/nfl/preise| award details]])'' for outstanding theses was awarded to Sebastian Giersch this year for his Master thesis titled ''Flight Simulations in LES Generated Near-Surface Turbulent Wind Fields''([attachment:PB223192.JPG photo]). Official information can be found ''([[https://www.tu-braunschweig.de/forschung/zentren/nfl/forschungstage/forschungstag2017| here]])'' ''\\ '''[ 2017-06-02 ]''' ''This years PALM seminar is held at the Institute of Meteorology and Climatology, Leibniz Universität Hannover, 25th - 29th September ([attachment:Announcement_PALMseminar2017.pdf details]).''\\ '''[ 2017-05-30 ]''' ''New topography and surface-modeling concept implemented ([[wiki:doc/tec/topography#topo|details]]).''\\ '''[ 2017-02-10 ]''' ''PALM celebrates 10 years of code development using SVN.''\\ '''[ 2016-10-26 ]''' ''PALM now features an anelastic approximation for its model equations. This paves the way for the simulation of deep convective clouds with PALM ([[wiki:doc/app/inipar#approximation|details]])''.\\ ---- '''PALM users world map'''[[FootNote(The world map shows groups that work with PALM and that have published at least one paper. You want to be listed in the map? Let [mailto:maronga@muk.uni-hannover.de us] know!)]] {{{ #!html
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