Device for tracking dynamic characteristics of floating bubbles and flow field characteristics in real time

Abstract

The invention provides a device for tracking the dynamic characteristics of floating bubbles and the flow field characteristics in real time, which comprises a floating bubble generation device, a bubble motion tracking and photographing device and a hydrogen bubble generation and tracking device, wherein the floating bubble generation device comprises a glass box, an air pump, a gas collecting funnel and an electrolyte; the glass box is a square two-wall glass box, and an electrolyte which is the same as the electrolyte in the glass box fills the gap between the two walls; the bubble motion tracking and photographing device comprises a high-speed camera and a radar velocimeter; the high-speed camera is arranged on an electrically-controlled lifting platform; the radar velocimeter controlsthe motor on the electrically-controlled lifting platform through a signal conversion device and an electric pushing rod velocity regulator; and the hydrogen bubble generation and tracking device isformed by a cathode, an anode, a DC power supply, a pulse generator, a photocell and a lighting device. The structure design is novel, the operability is strong, the operation cost is low, and the dynamic characteristics of the floating bubbles and the surrounding flow field change conditions can be tracked in real time.

Description

technical field [0001] The invention relates to a device for tracking the dynamic characteristics and flow field characteristics of floating bubbles. Background technique [0002] At present, people pay more and more attention to the use of bubble experiments to study the movement of bubbles and their physical characteristics in the flow field. In the experiment, the bubbles move faster and the flow field changes more complicated. It is difficult to use a fixed high-speed camera to capture a clear picture. , Most of the existing technologies use particle image velocimetry (PIV) to track the dynamic characteristics and flow field characteristics of the floating bubbles, but the operating cost of this technology is very high. In addition, in the prior art, the color of the solution is mostly used to capture the wake of the floating bubbles and the surrounding flow field information, and the solution color will cover a large amount of flow field information. Contents of the i...

AI Technical Summary

Problems solved by technology

[0002] At present, people pay more and more attention to the use of bubble experiments to study the movement of bubbles and their physical characteristics in the flow field. In the experiment, the bubbles move faster and the flow field changes more complicated. It is difficult to use a fixed high-speed camera to capture a clear picture. , most of the existing technologies use particle image veloc...

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