建筑火灾温度的场-网复合模拟

Hybrid field-network simulation of temperature in a building fire

针对多功能建筑模型,构建了场模拟和网络模拟之间的联接平台,对特殊受限空间(着火室和大空间房间)采用场模拟,对体积均匀受限空间采用网络模拟。将场、网单独模拟的结果相互作为彼此交界面的边界条件,实现了模型建筑在特定火灾场景下的场-网复合模拟。复合模拟可以清晰地提供特定火灾场景下特殊受限空间内烟气各物理量分布的详细信息,还可以足够准确地预测建筑内各受限空间的烟气运动特征,满足了求解精度和求解速度的要求。

A connecting platform between the field model and network model has been constructed, based on a multi-functional building model. The field model is used to simulate the fire smoke in certain special compartments （the fire room and specific large-space rooms）, while the network model is used to simulate the uniform compartments. When combining the simulation results of the field model and network model as the interface boundary conditions for the each other, a hybrid field and network model is presented. The hybrid field-network model can provide more detailed physical information of the fire smoke properties under a specific fire scenario for the specially confined compartments. In addition, the hybrid model can predict the fire smoke flow properties in the building accurately.