measurement of circumferential liquid film based on lif and virtual stereo vision sensor
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ID: 192821
2016
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Abstract
Gas-liquid annular flow is widely used in many industrial applications such as petroleum, chemical, and nuclear engineering. The feature parameters of liquid film in the annular flow are of great significance to understand the flow characteristics and measure the flow precisely. For the annular flow, the circumferential features of liquid film are more important than the axial features to acquire abundant flow structures and reveal the flow mechanism. In the paper, a measurement platform based on the laser-induced fluorescence (LIF) and virtual stereo vision sensor is presented. The virtual stereo vision sensor comprises a high-speed camera and two optical reflection sets, which can acquire the liquid film from two views simultaneously and reconstruct the features of liquid film. Image processing techniques are proceeded with to extract the feature parameters of liquid film; then the circumferential flow characteristic can be reconstructed by views transformation and fusion. The flow characteristic based on the thickness distribution is analysed. The experimental results show that the method is valid and effective, which can give a more detailed and accurate description for the liquid film in annular flows.
| Reference Key |
xue2016journalmeasurement
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|---|---|
| Authors | ;Ting Xue;Xiaokang Lin;Liuxiangzi Yang |
| Journal | BMC infectious diseases |
| Year | 2016 |
| DOI |
10.1155/2016/2872947
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| URL | |
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