Water body hydrodynamic characteristic partitioning method for channel type reservoir tributary backwater region

Abstract

The invention relates to a water body hydrodynamic characteristic partitioning method for a channel type reservoir tributary backwater region, particularly relates to a method for reasonably dividing a hydrodynamic characteristic partition of the channel type reservoir tributary backwater region under the combined action of multiple factors according to a numerical calculation result. After a hydrodynamic field is obtained by using a numerical method, firstly given conservative material inputs are respectively taken as tracer agents under the incoming boundary condition of mainstream and tributaries, the reasonable range of a mainstream influence region can be determined by analyzing and researching the concentrations of the tracer agents in the region, and a channel region, a transition region and a lake region can be respectively divided according to flow rate from upstream to downstream outside the mainstream influence region. According to the method, a reliable result can be obtained without depending on field monitoring, the hydrodynamic characteristic of the region is partitioned in the early regional planning of the channel type reservoir tributary backwater region, the region is reasonably planned by combining the characteristic of each partition, each natural characteristic in the region is completely utilized, and the feasibility of the planning is efficiently improved.

Description

technical field [0001] The invention belongs to the technical field of environmental protection and resource comprehensive utilization, and in particular relates to a method for zoning the hydrodynamic characteristics of a tributary bay of a river-course reservoir. Background technique [0002] With the change of my country's hydropower development goals, in recent years, relevant national departments have proposed to vigorously develop hydropower under the premise of protecting the environment, and hydropower development has gradually changed from the stage of economic and technological constraints to the stage of environmental constraints. Therefore, in the early stage of hydropower development, it is necessary to target Conduct surveys on the developed hydropower reservoir area, evaluate the rationality of hydropower development, and formulate reasonable regional development policies according to the economic development conditions of the reservoir area. After the reservoi...

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Problems solved by technology

However, it should be pointed out that this method needs to rely on a large amount of on-site long-term monitoring data. For the reservoir to be built, it is impossible to grasp the ecological division of the tributaries of the reservoir area based on these methods. Therefore, it is necessary to provide a reasonable prediction method for Provide reference for planning and development in the Reservoir Bay tributary area

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