建筑火灾场模拟计算中的网格独立性——建筑防火性能化设计的若干问题探讨

Determination of fire scenario in performance-based fire safety design

建筑火灾的计算机模拟是建筑防火性能化设计的重要组成部分,场模拟是建筑火灾计算机模拟的主要方法之一。在场模拟计算中网格独立性分析直接影响计算结果的误差,甚至影响计算结果是否定性合理。通过对网格独立性问题进行研究和探讨,以求科学地认识和理解场模拟计算在性能化防火设计中的正确使用。

The numerical simulation of the building fires is the important component of the performance-based design in building fire protection design. The field modeling is one of the main approaches on the numerical simulation about the building fire. The mesh grid size sensitivity analysis directly involves the result error of the computation, even determines whether the result of calculation is plausible. The mesh independent problem is studied and discussed in order to know and understand how to use correctly the field model in the performance-based design.