… installations are only granted a license if model calculations have demonstrated that the emissions of the planned installation will not cause permitted levels of … used elsewhere, this flexible modelling procedure produces realistic results even when buildings and uneven terrain influence flue gas dispersion. A computer …

… They can be used both for practical applications and for checking other programs that are considered to be capable of implementing the calculation methods in … turbulence, parallel to similar works by Wilson and Legg & Raupach; in doing so, I delivered a promise made to Hanna during a conference in the preceding … in Amsterdam. The preparations for the TA Luft 1983 had not yet finished, nevertheless the participants already discussed how the TA Luft should develop on an …

… of program changes. last update on 12.12.2025 Always use the latest program version when carrying out dispersion calculations! Archived files for BESTAL, AUSTAL, … monitor points in nested grids) 2011-04-13: Problem 2011-04-13 (project title with more than 140 characters) 2010-11-08: FAQ, new entry S16 (calculation of odor hours …

… FAQ From the questions that have been received, the most important were selected and listed on this page … the drift of the raindrops should be taken into account in the dispersion model when designating wet deposition. Such a procedure is to be described in the new … if the vertical component Vs of the wind vector at the bottom of the cell is less or equal -99 m/s. Below a building cell there may beno free cell (this would …

… Known and resolved problems This page provides a list of problems that have been discovered. They are grouped into known and resolved issues. last … abort on Windows 11 Description: Under Windows 11, BESMAX crashes sporadically when using multi-threading. A log file (hs_err_pid<...>.log) is then output by the … or specify the additional option -XX:TieredStopAtLevel=1 in the batch call (less aggressive optimization with a slight loss of speed). Resolved: 2025-11-26 …