浅谈FDS软件对非规则建筑边界的定义

The short discussion of the boundary's definition of FDS to irregular construction

FDS(Fire Dynamics Simulator)软件对单房间或数目较少的房间作火灾预测分析时 ,是一个很好的分析工具 ,但在对不规则建筑的边界定义粗糙时 ,所计算的结果将很不理想 ,对这些特殊建筑如弧形墙、倾斜墙及其墙上开口的边界给出了合理的定义。同时应用 FDS软件对不同大小的网格进行了计算探讨 ,将计算结果进行了比较 ,发现合理的网格大小在FDS软件计算中是非常重要的。这对理解

FDS is a good tool predicting smoke spread in buildings with single or fewer rooms. The author found that the coarse boundary definition of irregular construction may lead to non-ideal outcome. Introduces some approaches with fine definition to the exceptive condition such as arc wall, inclined wall and openings in the boundary wall. Furthermore, concludes that a reasonable size of grid is also important for obtaining valid results.