Application of ultrasonic tomography to monitoring gas/liquid flow

被引：83
作者：
Xu, LJ [1 ]
Han, YT [1 ]
Xu, LA [1 ]
Yang, JS [1 ]
机构：
[1] TIANJIN UNIV,DEPT APPL PHYS,TIANJIN 300072,PEOPLES R CHINA
来源：
CHEMICAL ENGINEERING SCIENCE | 1997年 / 52卷 / 13期
基金：
中国国家自然科学基金;
关键词：
gas/liquid two-phase fluid; ultrasound; transmission-mode (TM); tomography; image reconstruction algorithm;
D O I：
10.1016/S0009-2509(97)00043-2
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
On the basis that a gas/liquid two-phase flow was considered as a strongly inhomogeneous medium due to the high contrast in acoustic impedance distribution, the authors analysed the inherent dependency of the incomplete tomographic projections on the distribution of bubbles in liquid when using transmission-mode (TM) ultrasound computerized tomography (UCT). A mathematical model describing the acoustic characteristics of this flow was established. A transmission-mode ultrasonic system for tomographic imaging of gas/liquid flow was designed based upon a fast binary back-projection image reconstruction algorithm. Emphasis was made on the evaluation of its performance and its application to flow regime identification. Several flow pattern models were made and the corresponding monitoring results were given. Finally, limitations and possible future implementations of the system are discussed. (C) 1997 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：2171 / 2183
页数：13
相关论文
共 17 条
[1]   A RECONSTRUCTION ALGORITHM OF BODY SECTIONS WITH OPAQUE OBSTRUCTIONS [J].
CHOI, JS ;
OGAWA, K ;
NAKAJIMA, M ;
YUTA, S .
IEEE TRANSACTIONS ON SONICS AND ULTRASONICS, 1982, 29 (03) :143-150
[2]  
FENG WS, 1992, THESIS TIANJIN U CHI
[3]  
GAI H, 1990, THESIS U MANCHESTER
[4]  
GREENLEAF JF, 1983, P IEEE, V71
[5]  
Huang S.M., 1992, P 1 M EUR CONC ACT P, P295
[6]  
KAVEH M, 1982, ACOUSTICAL IMAGING, V12
[7]  
LEWITT R M, 1979, Medical Physics (Woodbury), V6, P412, DOI 10.1118/1.594519
[8]  
LU ZQ, 1986, IEEE T ULTRASON FERR, V33, P722
[9]   SIMULATIONS FOR PARALLEL PROCESSING OF ULTRASOUND REFLECTION-MODE TOMOGRAPHY WITH APPLICATIONS TO 2-PHASE FLOW MEASUREMENT [J].
WIEGAND, F ;
HOYLE, BS .
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 1989, 36 (06) :652-660
[10]  
WILLIAMS RA, 1994, P ECAPT 94, P413
12