Hydraulic energy equation flow velocity measurement experiment device and method

Abstract

The invention discloses a hydraulic energy equation flow velocity measurement experiment device and method. The device comprises a flow regulating valve, a water outlet pipe, a porous sieve plate, a floating ball, a water return pipe, a water stop valve and a water storage container, the flow regulating valve is arranged on the water outlet pipe, the water storage container is arranged below the water outlet pipe, and the top of the water storage container is open; water flowing out of the water outlet pipe directly flows into the water storage container, the diameter of the porous sieve plate is slightly smaller than the inner diameter of the water storage container, the porous sieve plate is fixed to the inner wall of the water storage container, and the fixing height is adjustable; the floating ball is arranged in the water storage container and is positioned below the porous sieve plate; the water return pipe is communicated with the water storage container; the water stop valve is arranged on the water return pipe; and the device has the characteristics of simple structure, reusability, low cost and low energy consumption. The flow measurement method converts the water flow velocity into the rising velocity of the floating ball in the water storage device, so that the flow velocity measurement mode is more visual and accurate, the experiment efficiency is improved, the experiment time is saved, and the method is widely applied to various fluid mechanics experiments.

Description

technical field [0001] The invention relates to a hydraulic energy equation experimental device technology, in particular to a hydraulic energy equation flow velocity measurement experimental device and method. Background technique [0002] For the analysis of complex water flow motion, the combination of various angles and methods is required. The energy equation experiment of constant flow is an important part of the current hydraulic experiment. Its items respectively represent three different forms of energy per unit mass of fluid, and its physical meaning is that fluid per unit mass has the characteristic of mechanical energy conservation along the same streamline under the condition of ignoring head loss. [0003] However, the current energy experiments have problems such as time-consuming, cumbersome flow measurement and large errors, unstable readings of the piezometric tubes, and difficulty in controlling the regulating valve reasonably, all of which will cause erro...

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Problems solved by technology

[0003] However, the current energy experiment has problems such as time-consuming, cumbersome flow measurement and large error, unstable reading of the piezometric tube, and difficulty in controlling the regulating valve reasonably, all of which will cause errors of varying degrees, resulting in large errors in the final experimental results and failure of the experiment. more likely

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