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Title: Coupling of Fluid Field and Electrostatic Field for Electrical Capacitance Tomography
Author: Ye JiaMin(叶佳敏)1; Wang, Haigang1; Li, Yi2; Yang, Wuqiang3
Source: IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
Issued Date: 2015-12-01
Volume: 64, Issue:12, Pages:3334-3353
Keyword: Complex flow ; coupling simulation ; electrical capacitance tomography (ECT) ; electrostatic field ; two-phase flow field
DOI: 10.1109/TIM.2015.2450351
Corresponding Author: Ye, JM
DOC Type: Article
English Abstract: The performance of an electrical capacitance tomography (ECT) sensor is usually evaluated by static experiment with solid material(s) for some typical distributions encountered in two-phase flows. Considering the soft-field effect of an ECT sensor, the existing evaluation method is not appropriate for evaluating the performance of ECT for the real complex two-phase flows. In this paper, a new simulation model is proposed by coupling two physical fields: fluid field and electrostatic field, based on a mixture model and an electrostatic model. The mixture model is based on the diffusive flux model, which is suitable for liquid-solid mixtures with high concentration of solid particles. An ECT sensor with 12 electrodes is modeled based on an electrostatic model with a periodic excitation signal. The two models are coupled by an additional electric force in the momentum conservation equation in the mixture model. The time-varying permittivity distributions and capacitance data are obtained from the computational simulation based on the coupling model to investigate the performance of the ECT sensor and image reconstruction. Linear backprojection and Landweber iteration with different parameters are used to reconstruct images. Experiment was carried out using a rotation device with a 12-electrode ECT sensor to validate the simulation results. Both simulation and experimental results verify that the proposed coupling model is valid for evaluating the performance of ECT sensors and image reconstruction algorithms.
WOS Headings: Science & Technology ; Technology
WOS Subject: Engineering, Electrical & Electronic ; Instruments & Instrumentation
WOS Subject Extended: Engineering ; Instruments & Instrumentation
WOS Keyword Plus: IMAGE-RECONSTRUCTION ; VISCOUS RESUSPENSION ; 2-PHASE FLOW ; SENSORS ; SYSTEM ; BED
Indexed Type: SCI
Funder: National Natural Science Foundation of China(61374018 ; 61320106004)
Language: 英语
WOS ID: WOS:000364870100018
Citation statistics:
Content Type: 期刊论文
URI: http://ir.etp.ac.cn/handle/311046/112252
Appears in Collections:中国科学院工程热物理所(论文库)_期刊论文(SCI)

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description.institution: 1.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China
2.Tsinghua Univ, Grad Sch Shenzhen, Ocean Sci & Technol Div, Beijing 100084, Peoples R China
3.Univ Manchester, Sch Elect & Elect Engn, Manchester M13 9PL, Lancs, England

Recommended Citation:
Ye JM,Wang, Haigang),Li, Yi,et al. Coupling of fluid field and electrostatic field for electrical capacitance tomography[J]. IEEE Transactions on Instrumentation and Measurement,2015,64(12):3334-3353.
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