The effect of the wind speed velocity on the stack pressure in medium-rise buildings in cold region of China

The numerical simulation results of the stack effect in medium-rise buildings in Harbin (cold region in China) are presented in that paper. The multizone ventilation model COMIS was used for the simulation. The effect of the wind speed velocity and the temperature of the stairwell on the pressure difference curves shape have been investigated. It appears that the wind speed velocity may have a strong effect on the pressure difference.