A river ecological flow optimization method based on three-dimensional flow field simulation

CN122113756APending Publication Date: 2026-05-29ZHEJIANG GUANGCHUAN ENG CONSULTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG GUANGCHUAN ENG CONSULTING CO LTD
Filing Date
2026-04-23
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing technologies for calculating river ecological flow result in the loss of high-dimensional flow disturbances and underlying spatial characteristics due to dimensionality reduction simulation. This makes it impossible to characterize the water-blocking effect of the river's underlying space and the work consumed by aquatic organisms, leading to ecological flow assessments deviating from actual needs.

Method used

By constructing a method for optimizing river ecological flow based on three-dimensional flow field simulation, topographic point cloud data and flow distribution data of the river are obtained, three-dimensional spatial discretization is performed, three-dimensional velocity gradient and turbulent dissipation intensity are captured, eddy structure is extracted, bottom water flow is decoupled, three-dimensional kinetic energy dissipation field is reconstructed, and ecological flow volume is calculated by combining hydrodynamic characteristic flow and ecological parameters, and its spatial morphological fluctuation curve is monitored.

Benefits of technology

It achieves refined and physically realistic simulation of river flow field, deeply integrates hydrodynamic and biomechanical processes, improves the accuracy and automation level of ecological flow assessment, and can identify the global optimal ecological flow and transform it into water conservancy facility scheduling instructions.

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Abstract

The present application relates to the technical field of computer-aided design, in particular to a river ecological flow optimization method based on three-dimensional flow field simulation. The specific implementation process comprises: obtaining river data, extracting river basin boundary and constructing river flow field simulation model; performing fluid dynamics solution to output vortex structure, introducing bottom water flow momentum to extract hydrodynamic characteristic flow; constructing simulation fluid matrix to calculate swimming work consumption, and delineating river ecological zone to obtain three-dimensional ecological flow volume; monitoring spatial form fluctuation curve, converting global optimal ecological flow into water conservancy facility flow scheduling instruction output. The present application depicts the river bottom vortex structure and microscale hydrodynamic characteristics in the digital space by constructing the river flow field simulation model, improves the fine degree and physical reality of the flow field simulation, and improves the automation level, continuity and decision accuracy of the ecological flow determination by deeply coupling the hydrodynamic characteristic flow and biomechanics parameters.
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