一个并行程序用于模拟洪水
Anurak Busaman1,2, Rhysa McNeil3,4, Somporn Chuai-Aree1,2
1Department of Mathematics and Computer Science, Faculty of Science and Technology, Prince of Songkla University, Muang, Pattani, Thailand.
Scientific reports
|July 3, 2025
概括
这项研究使用并行算法开发了一种更快的洪水模拟方法. 这种新方法显著减少了准确的洪水建模的计算时间,改善了防灾准备.
科学领域:
- 计算流体动力学 计算流体动力学
- 环境工程环境工程
- 数字建模 数字建模
背景情况:
- 准确的洪水模拟对于预防灾害至关重要,但通常是计算密集的.
- 当前的方法在大规模或时间关键的场景中面临速度和成本的限制.
研究的目的:
- 为了提高洪水模拟的计算速度,同时保持准确性.
- 开发一个平行算法,以有效地解决浅水方程.
主要方法:
- 实现了使用自动域名更新的并行算法和一个平衡的,保持正面性的第一阶有限体积方案.
- 利用一个索引数组来实现高效的域分解和跨多个核心的并行处理.
- 用水流模拟和现实世界大破裂场景 (Xe-Pian Xe-Namnoy) 测试了算法.
主要成果:
- 与串行方法相比,并行算法显著减少了计算时间.
- 开发的程序在模拟水流和水断裂事件方面表现出了效率.
- 保持精度,同时实现了实质性的速度改进.
结论:
- 拟议的并行算法为洪水模拟提供了一个计算效率高的解决方案.
- 这一进步可以改善洪水建模在时间关键情况下的实际应用.
- 该方法对加强灾害应对和管理策略具有前景.
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