A Numerical Simulation Method of River Structure Flow Based on Finite Volume Method
A finite volume, numerical simulation technology, applied in the field of flood control risk analysis and water conservancy engineering, it can solve the problems of numerical solution divergence, simulation failure, lack of shock wave capture and processing of excessive flow state, and achieve the effect of ensuring accuracy and stability
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[0039] The invention provides a finite volume method-based numerical simulation method for flow of river structures. This method uses a one-dimensional finite volume unit to discrete the channel, takes the position of the channel structure as the structure interface of the channel calculation unit, and calculates the amount of water passing through the interface in each time step according to the structure flow formula. This part of the water is deducted and added to the upstream and downstream units adjacent to the interface, respectively. In order to ensure the continuity of the calculation, the hydraulic element values at the interface of the structure are numerically reconstructed. This method can accurately reflect the flow characteristics of each structure under the numerical framework of the one-dimensional explicit finite volume method, and at the same time ensure the accuracy ...
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