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Rainfall analog method and device used for centrifugal model

A technology of centrifugal model and simulation method, which is applied in the field of rainfall simulation and its device for centrifugal model, which can solve problems such as difficult to control rainfall simulation, failure to ensure uniformity of rainfall in rainfall areas, difficult to control rainfall simulation, etc.

Inactive Publication Date: 2015-03-04
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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  • Abstract
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  • Application Information

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Problems solved by technology

The system must maintain a certain amount of water in the rainfall device in advance to ensure the uniformity of rainfall in the rainfall area, so it is difficult to control and obtain a more accurate rainfall simulation
[0004] Chinese patent CN203108697U discloses a rainfall device for geotechnical centrifuge model tests. Its structure is relatively simple, but when the centrifuge runs at a high g value (for example, more than 50g) acceleration, because the water body is greatly affected by the centrifuge, therefore, The rainfall device cannot guarantee the uniformity of rainfall in the rainfall area, and it is difficult to control and obtain a more accurate rainfall simulation

Method used

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  • Rainfall analog method and device used for centrifugal model
  • Rainfall analog method and device used for centrifugal model
  • Rainfall analog method and device used for centrifugal model

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Embodiment Construction

[0028] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings. Wherein, the same parts adopt the same reference numerals.

[0029] figure 1 Shown is a schematic structural view of a rainfall simulation device for a centrifugal model according to a specific embodiment of the present invention; figure 2 Shown is figure 1 The three-dimensional decomposition schematic diagram of part of the structure in ; Figure 5 Shown is figure 2 Partial enlarged schematic diagram of C; figure 1 The dotted line in the middle is a schematic representation of water flow. For the convenience of graphic representation, figure 2 only show figure 1 The three-dimensional exploded schematic diagram of the partial structure in .

[0030] see figure 1 , 2 , 5, the present invention provides a kind of rainfall...

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Abstract

The invention provides a rainfall analog device used for a centrifugal model. The rainfall analog device comprises a rainfall plate in which 0.5 mm small holes are uniformly formed is arranged above the centrifugal model; the distance between the rainfall board and the top surface of the centrifugal model is smaller than 10 mm; one or more mounting beams are arranged on the rainfall plate; a plurality of rectangular spray nozzles (7) are arranged on the mounting beams; a one-to-many adapter is connected onto a water supply joint, and is connected with the rectangular spray nozzles through hoses; the rectangular spray nozzles are direct-injection pressure type atomizing nozzles. The invention further provides a rainfall analog method adopting the rainfall analog device. The rainfall analog method and the device thereof ensure the rainfall uniformity in a rainfall area of the centrifugal model, and can realize accurate analog of various rainfall.

Description

technical field [0001] The invention relates to a simulation test method and device for a centrifugal model, in particular to a simulation method and a device for simulating rainfall on a centrifugal model in a geotechnical centrifugal test in a high-speed rotating environment of a geotechnical centrifuge. Background technique [0002] Centrifugal simulation technology is one of the important means to study geotechnical engineering. It uses the centrifugal force generated by the high-speed rotation of geotechnical centrifuges to simulate gravity. Under Ng conditions, the stress and strain of the small-scale centrifugal model are the same or similar to the prototype. Stress and deformation laws for geotechnical engineering related problems. In geotechnical engineering research, rainfall and its infiltration have a great influence on geotechnical structure, but how to simulate rainfall in the centrifugal model test environment has not been well resolved. [0003] "Development...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24
Inventor 侯瑜京张雪东彭仁王存
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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