FDS Verification: use LES for obst_activation_default_gases

Author: rmcdermo

Verification/Pressure_Solver/obst_activation_default_gases.fds

@@ -9,7 +9,7 @@
 
 &PRES CHECK_POISSON=T /
 
-&MISC FLUX_LIMITER='GODUNOV', STRATIFICATION=F /
+&MISC SIMULATION_MODE='LES', CFL_MAX=0.8, STRATIFICATION=F /
 &RADI RADIATION=F /
 
 &SPEC ID='GAS BG', MW=29, BACKGROUND=T /