Numerical Computation and Analysis on the Flow Characteristics of Smoke in the Fire of High-Rise Building

When a fire happened in a high-rise building, it is more difficult to evacuate people, and poisonous and harmful ingredients from the smoke in the fire are the important factor to endanger personnel life. Based on the N-S equation of smoke flow, the paper solved the relevant physical quantities and properties of smoke flow, analyzed the accuracy of the numerical method, actively explored the flow characteristics and influences of smoke in building fire, obtained some conclusions with practical significance and reference value, and provided the beneficial reference for the effective control of the smoke flow and personnel safe evacuation.