A Simulation Method for Reservoir Operation Process Coupled with Sediment Scouring and Silting

Abstract

The invention discloses a simulation method for a reservoir scheduling process coupled to sediment erosion and deposition. The simulation method comprises the steps that 1, a reservoir riverway terrain, reservoir flow sediment, a reservoir scheduling mode and other data are collected; 2, a reservoir one-dimensional non-constant flow sediment mathematical model is established; 3, the reservoir water level (or the discharged flow) meeting the requirement of the reservoir scheduling mode is obtained by using a hydrodynamic module in the reservoir one-dimensional non-constant flow sediment mathematical model and adopting the repeated trial calculation method; 4, the calculated reservoir water level (or the discharged flow) serves as the outlet boundary, reservoir area sediment erosion and deposition is calculated, and a new riverway terrain is obtained; and 5, the step 3 and the step 4 are repeatedly conducted on the basis of the new terrain calculated in the step 4 till a calculation cycle is over, and the reservoir scheduling process in the whole calculation cycle is obtained finally. According to the simulation method for the reservoir scheduling process coupled to sediment erosion and deposition, the problem that the reservoir scheduling process is affected by the changing process of reservoir real-time sediment erosion and deposition can be solved, and a technical support can be provided for reservoir scheduling.

Description

technical field [0001] The invention relates to the technical field of water conservancy engineering, in particular to a method for simulating a reservoir scheduling process coupled with sediment erosion and silting. Background technique [0002] The operation mode of the reservoir is related to the comprehensive benefits of the reservoir, and the simulation of the reservoir operation mode and operation process is of great significance for the study of the optimization of the reservoir operation mode and its impact. During the operation of the reservoir, the water and sediment conditions entering the reservoir and the topography of the reservoir area are constantly changing. Carry out calculations for reservoir runoff regulation, reservoir erosion and deposition prediction calculations, reservoir outflow sediment process predictions, and reservoir scheduling operations for flood control, power generation, shipping, etc. It is necessary to study and simulate the reservoir ope...

AI Technical Summary

Problems solved by technology

[0004] The main technical problem to be solved by the present invention is to provide a reservoir scheduling process simulation method coupled with sediment erosion and silting, which can solve the problem that the existing technology cannot reflect the influence of sediment deposition in the reservoir area, the calculation process does not match the actual process, and the calculation accuracy is low The problem

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