Flow conservation equation and pressure balance equation of double-shaft blow and exhaust ventilation model for highway tunnels are recommended on basis of hydrodynamics in the paper.

Based on the hypothesis of ideal fluial and the fluid dynamic analysis, the paper derives the energy equation and momentum equation of air flow in tunnels,analyzes the ventilating resistance and pressure calculating model, establishes the basic theory of longitudinal pressure-suction ventilation of highway tunnels, proposes the key control point and pressure balance model.

Optimized model of air supply outlet angle in highway tunnel blowing and exhausting longitudinal ventilation system

Multi-shaft blow-in and exhaust ventilation of a road tunnel;