Numerical Simulation Research on the Flow Characteristics of Fire Smoke

Smoke in building fire is an important factor to endanger personnel life. When smoke flow glides through the blunt body with certain speed, it may come into being vortex at the tail of the blunt body, which surely would cause a part of the energy to lose, and influence the effective emission of smoke. Starting from the N-S equation of smoke flow, the paper solved the relevant physical quantities and properties of smoke flow with the numerical method, visually simulated the flow pattern, actively explored the flow characteristics of smoke in building fire, and obtained some conclusions with practical significance and reference value. The research has an important guiding significance for optimizing the design of smoke control system and personnel safe evacuation plan.