基于半监督生成对抗网络电电容性断层扫描的电容数据,识别二相流模式
Heming Gao1, Shuaichao Ku1, Xiaohu Jian1
1School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, No. 5 Jinhuanan Road, Xi'an 710048, People's Republic of China.
The Review of scientific instruments
|October 6, 2023
概括
一个新的半监督生成对抗网络 (SGAN) 改进了使用电容断层扫描 (ECT) 数据的流动模式识别. 与传统算法 (如反向传播和支向量机器) 相比,这种方法实现了更高的准确性,数据标签显著减少.
科学领域:
- 多相流量分析多相流量分析
- 断层图像成像技术的技术.
- 机器学习应用程序 机器学习应用程序
背景情况:
- 电电容量断层扫描 (ECT) 对于流动模式识别至关重要.
- 现有的ECT算法在复杂的流程中难以准确,需要大量的标记数据.
- 生成对抗网络 (GAN) 提供了改进模式识别的潜力.
研究的目的:
- 提出一种使用ECT电容数据的新型流动模式识别方法.
- 利用半监督生成对抗网络 (SGAN) 来提高准确性和减少数据依赖性.
- 将SGAN的性能与传统机器学习模型进行比较.
主要方法:
- 开发了一个针对ECT电容数据量身定制的SGAN模型.
- 通过COMSOL和MATLAB模拟构建了一个包含11,400个随机流动模式的综合数据集.
- 经过训练和验证的SGAN,背向传播 (BP) 和支持矢量机器 (SVM) 模型.
- 在自己开发的ECT系统上进行静态实验,用于比较分析.
主要成果:
- 与BP和SVM相比,SGAN的平均识别准确度更高.
- 尽管标记样本比其他算法少十倍,但SGAN实现了卓越的性能.
- 该研究验证了SGAN在复杂流动模式识别中的有效性.
结论:
- 拟议的SGAN方法显著提高了使用ECT数据识别流动模式的准确性.
- SGAN提供了一种更有效的方法,因为它需要更少的标记训练数据.
- 这项研究为工业多相流量监测带来了有前途的进展.
相关概念视频
Uniform Depth Channel Flow: Problem Solving
71
To calculate the flow rate for a trapezoidal channel, first, identify the bottom width, side slope, and flow depth of the channel. The cross-sectional area (A) corresponding to the depth of flow (y), channel bottom width (B), and side slope (θ) is determined by:Next, calculate the wetted perimeter, which includes the bottom width and the sloped side lengths in contact with the water. Using the values of the cross-sectional area and the wetted perimeter, determine the hydraulic radius by...
71
Capacitance: Single-Phase And Three-Phase Line
175
In electrical power systems, understanding the capacitance of transmission lines is fundamental for efficient operation.
Single-Phase Lines
Consider a single-phase, two-wire transmission line with equal phase spacing energized by a voltage source. One conductor carries a uniform positive charge, while the other carries an equal negative charge. The capacitance C of the line can be derived from the voltage V between the conductors. For a one-meter section of the line, the capacitance is given...
Single-Phase Lines
Consider a single-phase, two-wire transmission line with equal phase spacing energized by a voltage source. One conductor carries a uniform positive charge, while the other carries an equal negative charge. The capacitance C of the line can be derived from the voltage V between the conductors. For a one-meter section of the line, the capacitance is given...
175
Uniform Depth Channel Flow
80
Uniform depth channel flow keeps fluid depth consistent along channels such as irrigation canals. In natural channels, such as rivers, approximate uniform flow is often assumed. This condition occurs when the channel’s bottom slope matches the energy slope, balancing potential energy lost from gravity with head loss due to shear stress. This balance prevents depth changes along the channel length, resulting in a steady, uniform flow.Uniform flow in open channels with a constant cross-section...
80
Plane Potential Flows
399
Plane potential flows simplify fluid motion by assuming the fluid to be irrotational and incompressible. These characteristics allow these flows to be described by a velocity potential function, ϕ, representing the flow speed in a given direction, and a stream function, ψ, that visualizes the flow path, both governed by Laplace's equation. These parameters help in estimating flow patterns, velocity distributions, and pressure fields around various hydraulic structures.
Uniform...
Uniform...
399


