River space-time self-moulding model

Abstract

The invention relates to a hydraulic model with the International Patent Classification (IPC) No. of E02B 1 / 02, in particular to a river space-time self-moulding model which simulates a downstream alluvial plain of an alluvial river and includes the natural formation and development process of a river. The model comprises a model water tank, a large stirring pool and a small stirring pool, wherein the small stirring pool is communicated with the large stirring pool by a pump; the large stirring pool is communicated with an opening box; the opening box is communicated with the model water tank; the model water tank sequentially comprises a model inlet section, an alluvial river self-moulding precipitation area, a flow field monitoring system, a water level probe, an overflow weir and a water return pool in which the water flows by the overflow weir; and the water return pool is communicated with the small stirring pool by a water return channel. The invention establishes the river space-time self-moulding model by synthesizing the advantages of a river natural model and a microscale model and can automatically simulate the space-time natural evolution process of the river, researchthe influence mechanism of the water and sand process on the river shape and the river potential change and research the feasibility of river comprehensive regulation measure and technology.

Description

Technical field: [0001] The invention relates to a hydraulic model, the IPC international patent classification number of which is E02B 1 / 02, in particular to a river spatiotemporal self-modeling model for simulating the alluvial plain downstream of an alluvial river, including the natural formation and evolution of the river course. Background technique: [0002] The solid model is an important means in the study of river dynamics and has been widely used in scientific research and production practice. The natural river model is the natural river engineering model, which refers to a solid model in which the river develops freely and the river course is shaped by the water flow. It plays an important role in exploring the evolution law of the river. Since Fridekin conducted the famous flume test in 1942, many scholars have used the flume test as a means to study the natural model of the river, and have achieved fruitful research results. The common characteristics of these ...

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Problems solved by technology

[0005] Among the above two models, the river natural model generally lacks a clear concept of scale, does not meet the basic requirements of the model similarity theory, and has theoretical flaws, resulting in great randomness and uncertainty in model tests

On the contrary, the micro-scale model has the concept of scale, but its application is currently focused on the research of a specific engineering problem. The boundary condition of the model is the existing landform, and the simulation range is limited to a certain river section.

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