Hydrodynamic Demonstrator

Abstract

The invention relates to a demonstration device, and particularly relates to a flow dynamic demonstrator. The flow dynamic demonstrator comprises an electric telescopic pole, wherein a bottom plate is arranged at the bottom of the electric telescopic pole; the top of the electric telescopic pole is fixed to a transverse plate; a water channel is arranged in the bottom plate; a submerged pump is arranged in the water channel; a water flow sensor and an ultrasonic sensor are fixed on the transverse plate; a hydroelectric generator is fixed on the electric telescopic pole; a water outlet of the submerged pump is connected with the water flow sensor through a water pipe; the water flow sensor is connected with a water inlet of the hydroelectric generator through the water pipe; the water outlet of the hydroelectric generator is introduced into the water channel through the water pipe; a control switch is arranged on the electric telescopic pole; and a voltmeter, a controller and a display screen are also arranged on the bottom plate. According to the technical scheme provided by the invention, the defects that the water level and the water flow in an experiment cannot be effectively controlled and the experiment result is not intuitive and accurate enough in the prior art can be effectively overcome.

Description

technical field [0001] The invention relates to a demonstration device, in particular to a water flow power demonstrator. Background technique [0002] Usually, when demonstrating the water flow power in the experiment, the small water wheel is usually placed in the water tank, and then the water is filled in a beaker, and the water is poured directly above the water wheel to impact the water wheel, and the water flow power is judged according to the speed of the water wheel. The size of the water flow is related to the water level and water flow, but this experimental method can neither control the water level nor the water flow, and cannot qualitatively demonstrate the water flow. At the same time, it is also difficult for the naked eye to distinguish the changes of the small rotational speed of the water wheel, which makes the experimental results less intuitive and accurate. SUMMARY OF THE INVENTION [0003] (1) Technical problems solved [0004] Aiming at the above ...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned shortcomings in the prior art, the present invention provides a hydrodynamic demonstrator that can effectively overcome the defects in the prior art that the water level and water flow in the experiment cannot be effectively controlled, and the experimental results are not intuitive and accurate enough.

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