基于FDS的火场空间物理建模器研究

为将FDS（Fire Dynamic Simulator）应用于复杂形体建筑的火灾模拟，建立符合模拟需要的火场模型，使实体边界与计算网格重合，并表达多物理参数影响，提出了以空间剖分模型为基础的物理建模方法，并介绍了相应的算法和所研制的系统。该系统既利用了通用CAD软件的建模优势，具有便捷高效的建模能力，又能满足FDS对实体建模的要求，对于复杂建筑的火灾模拟的研究和应用具有重要的意义。

Physically-based Model for Fire Scenario in FDS

To be treated by FDS (Fire Dynamic Simulator), building with complex geometries should be modeled by cuboids with their edges right on the computational grids and having important physical factors. To obtain that, a physically-based model was given based on Space Subdivision model. The details of the algorithm and system design based on that were also introduced. By making use of the power of 3D solid modeling engine of existing CAD software, this system offered a tool to make the fire building model much easier to satisfy the restriction of FDS. So it is useful for research and application of building fire simulation.