A Weir Flow Simulation Experimental Device

Abstract

The invention discloses a weir flow simulation experiment device, which relates to the technical field of hydraulic experiment instruments. A weir flow simulation experimental device of the present invention mainly includes an experimental water tank, several weir modules, a jacking mechanism and a main controller. The experimental water tank has a double-layer structure, including the upper open channel tank and the lower part of the diversion chamber; the weir modules can be combined into various weir types with different weir crest cross-section shapes, different shapes and weir crest widths; the jacking mechanism generates and outputs energy To complete the lifting process of the weir module; the main controller is used to control the lifting process of the weir module. The invention can realize rapid conversion of three types of weirs, and study the correspondence between thin-walled weirs with different heights and cross-sectional shapes of weir crests, practical weirs and wide-crested weirs with different heights, shapes and weir crest widths under different flow velocities and water levels. The characteristics of the weir flow can be expanded, the research scope of the weir flow test can be expanded, the practicality and maintainability are high, and it is beneficial to the development of hydraulics teaching and scientific research.

Description

technical field [0001] The invention belongs to the technical field of hydraulic experimental instruments, in particular to a weir flow simulation experimental device. Background technique [0002] The weir is a hydraulic structure that can not only raise the upstream water level but also overflow at the top. Its main function is to adjust the flow and water level. Weirs are widely used in practical engineering. Weirs are often used as water diversion and discharge structures in water conservancy projects, and weirs are often used as overflow and flow measuring devices in water supply and drainage projects. According to the relative size of the weir crest thickness and the water head above the weir, weirs can be divided into thin-walled weirs, practical weirs and wide-crested weirs. There are significant differences in the influence of different weir types on the weir flow tongue, and the model experiment is the main method to study the weir flow characteristics of differen...

AI Technical Summary

Problems solved by technology

However, the current weir flow test is single, and different weir types are not integrated into the experimental device at the same time. The procedures for changing different weir types in the test are complicated, which is not conducive to the development of weir flow research and teaching work.

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