在水运输模型中对凝血进行参数化的灵敏度分析
Vivian Turner1, Madison Bruno2, David W Werth1
1Savannah River National Laboratory, United States.
Journal of contaminant hydrology
|March 8, 2025
概括
ALGE模型模拟了水中的污染物运输,现在包括沉积物和颗粒的行为. 灵敏度分析证实了其在预测各种水环境中的度和运输动态方面的准确性.
科学领域:
- 环境建模环境建模
- 水性地质化学 水性地质化学
- 计算流体动力学的流体动力学.
背景情况:
- ALGE (水性) 模型是一个用于应急响应的3D运输工具.
- 最近的更新包括悬浮沉积物和颗粒物的凝结和分解.
研究的目的:
- 为了验证增强的ALGE模型在模拟悬浮沉积物和颗粒物运输方面的能力.
- 在关键模型参数上进行灵敏度分析.
主要方法:
- 开发了一个三维水体运输模型 (ALGE).
- 嵌入凝结和悬浮沉积物和颗粒物分解使用双线插值.
- 通过改变颗粒大小和密度参数进行了灵敏度分析.
主要成果:
- 模型产生的度 (0.05-0.25 kg/m3) 与现有文献相一致.
- 悬浮沉积物在盐水环境中 (>0.5天) 比淡水 (∼1天) 更快达到平衡.
- 在各种参数变化中观察到悬浮沉积物的显著差异 (P<0.05);颗粒物跟踪剂的差异主要在释放源附近.
结论:
- 改进的ALGE模型准确模拟悬浮沉积物和颗粒物运输.
- 对度和时间趋势的文献数据进行模型性能验证.
- 灵敏度分析突出了模型在不同盐度条件下对参数变化的响应能力.
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