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中文摘要：
ECT技术是多相流检测领域中的一项新技术,主要用于识别一个封闭管道内两相流/多相流系统中各个相成分分布问题。采用一种新的方法,通过电磁场有限元仿真软件COMSOL,对电容层析成像系统进行图像重建与仿真研究。构建了ECT的不同电极模型,分别对四种典型流型进行了图像重建;通过对离散介质场域的仿真研究,分析了电极数目、屏蔽罩、径向电极对重建图像质量的影响;对气液固三相流进行了图像重建,获得了满意的重建结果。
英文摘要：
Electrical Capacitance Tomography technique is a new technique for multi-phase flow measurement. With broad application prospects, the purpose of this technique is to identify each phase’s composition of two-phase/ multi-phase flow system in a closed pipe. A new method-COMSOL is used to analyse the Electrical Capacitance Tomography of reconstruction image and simulation research. Different electrical models are established, and the reconstruction images of four kinds of representative flow are achieved; through simulation study of the field with disperse phase, the influence of the electrode number, shielding case and radial electrode to the imaging quality are analyzed; the reconstruction images of three-phase flow are achieved to obtain the satisfactory result.
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