“…c o m / l o c a t e / t u s t 2010; Fan et al, 2013;Li and Chow, 2003;Lin and Chuah, 2008;Lu et al, 2013;Ni et al, 2010;Porizek et al, 2007;Rie et al, 2005;Vauquelin and Megret, 2002;Vidmar et al, 2012). Experimental study (Choi et al, 2005;Ni et al, 2010;Porizek et al, 2007;Vauquelin and Megret, 2002) and numerical simulation (Ballesteros-Tajadura et al, 2006;Colella et al, 2010;Li and Chow, 2003;Lin and Chuah, 2008;Lu et al, 2013;Rie et al, 2005;Vidmar et al, 2012) with both isothermal and thermal models were carried out to study the performance of different transversal smoke extraction systems of tunnels. Vauquelin and Megret (2002) conducted experiments in a 1:20th tunnel to investigate the influence of fire source and outlets on the exhaust coefficient.…”