This study proposes an optimization design to improve the accuracy of fire risk models by combining the results of the UFSM (Urban Fire Spread Model, Japan) with the United States (US) Fire Simulation Software FDS6.7.3 (Fire Dynamics Simulator, FDS). Using parallel processing, the simulation time was dramatically reduced, and this may assist the risk factor analysis of buildings in a large area. Fire destroyed all seven main structures of the Shuri Castle World Heritage site on 31 October 2019, and this tool may have identified risk factors, which could have been mitigated and potentially prevented the building loss. Other historical buildings may benefit from using this tool to identify their relevant risk factors. This study completed a full-scale simulation of the 76 m × 45 m × 15 m area, which contained the nine temples, with 6.4 million grids for a simulation time of 600 s in 45 h. This tool can assist in input-data risk factor analysis and contribute to the improvement of protection technology for cultural heritage buildings.

中文翻译：

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使用并行计算来加速文化遗产建筑的火灾模拟

本研究结合UFSM（Urban Fire Spread Model，Japan）和美国（US）火灾模拟软件FDS6.7.3（Fire Dynamics Simulator，FDS）的结果，提出了一种优化设计，以提高火灾风险模型的准确性。使用并行处理，模拟时间显着减少，这可能有助于大面积建筑物的风险因素分析。2019 年 10 月 31 日，火灾摧毁了首里城世界遗产地的所有七个主要结构，该工具可能已经确定了风险因素，这些因素本可以减轻并可能防止建筑物损失。其他历史建筑可能会受益于使用此工具识别其相关风险因素。本研究完成了对 76 m × 45 m × 15 m 区域的全尺寸模拟，其中包含 9 座寺庙，其中 6 座。400 万个网格，模拟时间为 45 小时内 600 秒。该工具可以辅助输入数据风险因素分析，有助于提高文化遗产建筑的保护技术。