Modelling of airflow in a closed simulation box with regard to atmospheric optical link Lukas Hajek, Jan Latal, Marian Bojko, Radek Poboril, Petr Koudelka, Jan Vitasek, Petr Siska and Vladimir Vasinek EPJ Web of Conferences, 67 (2014) 02032 Published online: 25 March 2014 DOI: 10.1051/epjconf/20146702032