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Two-phase pipeline window, measurement system, view acquisition method, 3D reconstruction method and cavitation rate measurement

A pipeline and viewing window technology is applied in the fields of two-phase pipeline viewing windows, measurement systems, view acquisition, three-dimensional reconstruction and cavitation rate measurement. Less, eliminate the effect of image distortion

Active Publication Date: 2020-02-21
SUN YAT SEN UNIV
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Problems solved by technology

However, the capacitance method is not suitable for weak dielectric working fluid, so the measurement of weak dielectric working fluid is not well realized

Method used

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  • Two-phase pipeline window, measurement system, view acquisition method, 3D reconstruction method and cavitation rate measurement
  • Two-phase pipeline window, measurement system, view acquisition method, 3D reconstruction method and cavitation rate measurement
  • Two-phase pipeline window, measurement system, view acquisition method, 3D reconstruction method and cavitation rate measurement

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Embodiment 1

[0065] A kind of two-phase fluid flow described in the present invention can observe simultaneously shape and measurement systems for gas-liquid distribution in cross-sections of fluids include:

[0066] A measurement system capable of simultaneously observing two-phase fluid manifolds and fluid cross-section gas-liquid distribution, including the pipeline window of the present invention; and a high-speed camera for photographing the cross-sectional observation surface 11 and the side observation surface 21 of the pipeline window , an in-line 532nm laser for irradiating laser light into the pipe window; a visible light surface light source for providing surface light to illuminate the surface light source plane 22

[0067] The inline 532nm laser irradiates the section of the working medium flowing through the window of the pipeline to excite the fluorescent indicator in the working medium.

[0068] A high-speed camera captures side views of the working fluid in two different ...

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Abstract

The invention provides a pipeline window used for two-phase fluid measurement. The pipeline window is characterized by comprising a cross section observing part, a side observing part, an incident vertical cutting part and a channel penetrating through the cross section observing part, the side observing part and the incident vertical cutting part. The invention also provides a measurement systemcapable of observing the manifolds of two-phase fluids and fluid section gas-fluid distribution simultaneously, a two-phase fluid view acquisition method, a dynamic manifold three-dimensional reconstruction method of the two-phase fluids through two-phase manifold image processing and a void fraction measurement method of the two-phase fluids. By means of the structure, linear laser is used for irradiating a fluorescence indicator in an excitation working medium in the pipeline window, a surface light source is used for irradiating the pipeline window, and then, an imaging device (such as a high-speed camera) performs shooting on an observation surface to obtain a side view and a cross-section fluorescence image of the working medium flowing through the channel in two different directions.

Description

technical field [0001] The invention relates to the technical field of two-phase flow testing, in particular to a two-phase fluid flow that can observe two different directions at the same time shape The pipe window for gas-liquid distribution in the cross-section of the fluid, and the two-phase fluid flow can be observed simultaneously by using the pipe window shape A measurement system for gas-liquid distribution in a cross-section of a fluid, a method for obtaining a two-phase flow view, a method for measuring the void ratio of a gas-liquid two-phase flow, and a method for three-dimensional reconstruction of a two-phase fluid manifold. Background technique [0002] With the development of aerospace technology, there are more and more scientific experiments under microgravity conditions, and the materials and working fluids used in the experiments are becoming more and more extensive, and it is even possible to carry out production in space in the future. [0003] The two...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/64G01N21/84G01N21/85G06T17/00G06T15/08G06T7/62G06T7/11G06T7/136G06T7/00
Inventor 黄力平何振辉王镇锐
Owner SUN YAT SEN UNIV
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