縦流換気方式による道路トンネルの火災時の気流解析 : 第1報,三次元乱流数値解析手法の検証

概要

論文の詳細を見る
Recently, longitudinal ventilation systems tend to be adopted even in long road tunnels because of low system costs. In this system, ventilation air flows along the tunnel axis. When a fire breaks out, the smoke diffuses into the tunnel by the ventilating flow. Thus, analyses of the air flow and the smoke behavior in a tunnel on fire are important for ventilation design. Unsteady and three dimensional flow were solved by the SIMPLE algorithm based on the finite difference method. The boundary condition was extended to the curvilinear tunnel wall. As a first step, the fire was simulated by a heated plate. Experiments and calculations shown above were carried out for a model tunnel with the heated plate. It was found that these calculation results showed good agreement with the experimental data.
社団法人日本機械学会の論文
1987-10-25