面向智慧水利的河湖水动力模型降阶反演初始化方法
By dividing the river-lake composite water area into subcritical flow river sections, lakes, and beach sub-domains, and using a surrogate model for joint inversion, the problems of slow initial field construction speed and low accuracy in smart water conservancy systems are solved, and efficient and accurate global initial field construction is achieved.
CN122065738BActive Publication Date: 2026-07-17NANJING HYDRAULIC RES INST +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NANJING HYDRAULIC RES INST
- Filing Date
- 2026-04-21
- Publication Date
- 2026-07-17
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Figure CN122065738B_ABST
Abstract
本发明公开了一种面向智慧水利的河湖水动力模型降阶反演初始化方法，该方法包括：将计算域按水力特性划分为多个子域，建立以降阶描述参数表征的物理约束方程，通过自由度分析确定独立待反演参数集；利用启动时刻的观测信息或先验值估计部分子域的初始状态；根据水力扰动传播时间确定反演窗口；构建代理模型，联合反演待反演参数和边界过程线参数以最小化代价函数；将反演得到的最优参数驱动代理模型生成全域初始状态，映射至基本模型网格并经过自由演化和边界平滑处理后作为初始条件。本发明通过降阶‑反演融合实测数据，可快速准确地完成全域初始场构建，满足智慧水利系统对水动力模型冷启动的需求。
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