An integrated approach of throttling physical model and machine learning for gas-liquid two-phase flow rates measurement

IF 2.3 3区 工程技术 Q2 ENGINEERING, MECHANICAL
Fachun Liang , Manqing Jin , Hongzhi Cui , Yixuan Zhu , Jiaao Chen , Guoxiang Tang , Ruixiang Ding
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引用次数: 0

Abstract

In the field of flow measurement, machine learning methods have been widely applied, and the training data used is often related to physical principles. In this study, integrating the hydraulic and thermal characteristics resulting from two-phase flow throttling, the data-physics model-based flow measurement (DPMFM) without separation for gas-liquid two-phase flow by combining throttling physical model with machine learning technique is proposed. Throttling experiments are conducted with a 12 mm nozzle. The throttling physical model is obtained through theoretical derivation and experimental data fitting. It serves as a physical constraint in the prediction model of mas quality and the basis for the calculation of flow rates. Representative features are selected as network inputs based on correlation calculation results. The performance of the model is assessed with untreated datasets and compared with the model without a physical constraint. Measurements of gas and liquid flow rates are in a good agreement with the experiments with Mean Absolute Percentage Error (MAPE) of 3.82 % and 3.62 %. The precision is favorable, with relative uncertainties for gas and liquid flow rate at 0.39 % and 0.57 %, respectively.
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来源期刊
Flow Measurement and Instrumentation
Flow Measurement and Instrumentation 工程技术-工程:机械
CiteScore
4.30
自引率
13.60%
发文量
123
审稿时长
6 months
期刊介绍: Flow Measurement and Instrumentation is dedicated to disseminating the latest research results on all aspects of flow measurement, in both closed conduits and open channels. The design of flow measurement systems involves a wide variety of multidisciplinary activities including modelling the flow sensor, the fluid flow and the sensor/fluid interactions through the use of computation techniques; the development of advanced transducer systems and their associated signal processing and the laboratory and field assessment of the overall system under ideal and disturbed conditions. FMI is the essential forum for critical information exchange, and contributions are particularly encouraged in the following areas of interest: Modelling: the application of mathematical and computational modelling to the interaction of fluid dynamics with flowmeters, including flowmeter behaviour, improved flowmeter design and installation problems. Application of CAD/CAE techniques to flowmeter modelling are eligible. Design and development: the detailed design of the flowmeter head and/or signal processing aspects of novel flowmeters. Emphasis is given to papers identifying new sensor configurations, multisensor flow measurement systems, non-intrusive flow metering techniques and the application of microelectronic techniques in smart or intelligent systems. Calibration techniques: including descriptions of new or existing calibration facilities and techniques, calibration data from different flowmeter types, and calibration intercomparison data from different laboratories. Installation effect data: dealing with the effects of non-ideal flow conditions on flowmeters. Papers combining a theoretical understanding of flowmeter behaviour with experimental work are particularly welcome.
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