Hydrodynamic Interpolation Table for Riverway Model Efficiency
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Solution Overview
Problem
Existing one-dimensional hydrodynamic models face reduced calculation efficiency due to the need for repeated segmented accumulation processes and conversion calculations between hydraulic elements in multiple riverway cross-sections, especially when dealing with a large number of cross-sectional scattered points.
Innovation Solution
A method and apparatus for constructing a one-dimensional hydrodynamic model by acquiring topographic data and hydrodynamic interpolation parameters, constructing a hydrodynamic interpolation table that includes water level-water surface width, water level-flow passing cross-sectional area, and water level-hydraulic radius tables, and performing sparse processing to optimize the interpolation table, allowing for efficient determination of hydraulic elements through table lookup and interpolation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If segmented accumulation processes are used to calculate hydraulic elements from cross-sectional scattered points, then the model can determine water surface width, flow passing cross-sectional area, and hydraulic radius, but the calculation efficiency decreases when there are a large number of cross-sectional scattered points
Solution Approach 1:
The patent pre-calculates and stores hydraulic element values (water surface width, flow passing cross-sectional area, hydraulic radius) for various water levels in an interpolation table before actual model computation. This preliminary action allows the model to directly retrieve pre-computed values through interpolation during runtime, avoiding repeated segmented accumulation calculations and significantly improving calculation efficiency while maintaining precision.
Solution Approach 2:
The patent creates an interpolation table that copies and stores the relationship between water levels and hydraulic elements based on cross-sectional scattered points. Instead of repeatedly calculating from raw scattered point data, the system creates a simplified copy of this relationship in tabular form, enabling fast lookup and interpolation operations that preserve accuracy while reducing computational burden.
2Measurement precision
If trial methods are used to determine water level from flow passing cross-sectional area, then the water level can be determined, but the trial cost increases and repeated conversion calculation processes are required
Solution Approach 1:
The patent creates a dedicated flow passing cross-sectional area-water level interpolation table that stores the inverse relationship. This allows direct determination of water level from flow passing cross-sectional area through table lookup and interpolation, eliminating the need for iterative trial methods and significantly reducing the time and computational resources required.
Solution Approach 2:
The patent pre-computes and stores water level values corresponding to various flow passing cross-sectional areas in the interpolation table during the table construction phase. This preliminary computation of inverse relationships enables direct querying during model operation without requiring repeated trial calculations, thus reducing trial cost and computation time.
3Adaptability or versatility
If multiple conversion calculation processes are called repeatedly between hydraulic elements in multiple riverway cross-sections, then the model can handle complex riverway geometry, but the calculation efficiency of the model decreases
Solution Approach 1:
The patent pre-computes and stores the relationships between all hydraulic elements (water level, water surface width, flow passing cross-sectional area, hydraulic radius) for each cross-section in interpolation tables before model execution. This preliminary preparation allows the model to efficiently handle complex riverway geometry by directly retrieving pre-computed relationships through interpolation, avoiding repeated conversion calculations and maintaining high calculation efficiency.
Solution Approach 2:
The patent creates interpolation tables that copy and store the hydraulic element relationships for each cross-section. These tabular copies enable fast retrieval and interpolation operations during model computation, replacing repeated conversion calculation processes while preserving the model's ability to handle complex cross-sectional geometries.
Data Source
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AI summary
The present application provides a method and an apparatus for constructing a one-dimensional hydrodynamic model, an electronic device, and a storage medium. The method includes: acquiring topographic data of a cross section of a riverway and hydrodynamic interpolation parameters; constructing a hydrodynamic interpolation table of the cross section of the riverway according to the topographic data and the hydrodynamic interpolation parameters, where the hydrodynamic interpolation table includes a water level-water surface width interpolation table, a water level-flow passing cross-sectional area interpolation table, a water level-hydraulic radius interpolation table, and a flow passing cross-sectional area-water level interpolation table; and constructing a one-dimensional hydrodynamic model of the riverway based on the hydrodynamic interpolation table of the cross section of the riverway. In the method provided in the foregoing solution, a one-dimensional hydrodynamic model is constructed based on a hydrodynamic interpolation table, so that the one-dimensional hydrodynamic model can determine a correspondence relationship between a cross-sectional hydraulic element and a water level in a table lookup and interpolation mode, thereby improving the calculation efficiency of the one-dimensional hydrodynamic model.