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http://dx.doi.org/10.7471/ikeee.2014.18.4.463

Interfacial Boundary Estimation in Stratified Flow of Two Immiscible Liquids Using Hybrid-type Fourier Series  

Kim, Bong Seok (BK21+ Clean Energy Convergence and Integration Center for Human Resources Training and Education, Jeju National University)
Choi, Bong-Yeol (Graduate School of Electronics Engineering, Kyungpook National University)
Kim, Kyung Youn (Department of Electronic Engineering, Jeju National University)
Publication Information
Journal of IKEEE / v.18, no.4, 2014 , pp. 463-470 More about this Journal
Abstract
In stratified flows of two immiscible liquids, due to the vibration in a pipe, the shape of the interface is not always periodic and it causes the different end points of the interfacial boundary. In this case the performance is not good. To solve this, in this paper, the hybrid-type Fourier series is proposed, which consists of both the polynomial and the trigonometric terms. Under the stationary interfacial boundary during acquiring a full set of voltage data, the performance of the proposed method is evaluated through the numerical experiments. The results show that the proposed method performs better than the conventional Fourier series in estimating the interfacial boundary.
Keywords
electrical resistance tomography; interfacial boundary estimation; Fourier series; stratified flow; two-phase flow;
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