Research Article

Numerical Investigation of Particle Concentration Distribution Characteristics in Twin-Tunnel Complementary Ventilation System

Figure 11

Particle concentration profiles variation for various interchanged air volume: (a) the particle concentration in uphill tunnel outlet, (b) the particle concentration in uphill tunnel outlet, and (c) the particle concentration ratio of uphill tunnel outlet and downhill tunnel outlet.
(a)
(b)
(c)