Bubble velocity measurement using magnetic fluid and electromagnetic induction

2009 ◽  
Vol 21 (9) ◽  
pp. 097101 ◽  
Author(s):  
Takuya Kuwahara ◽  
Florian De Vuyst ◽  
Hiroshi Yamaguchi
Keyword(s):  
Magnetic Fluid ◽  
Velocity Measurement ◽  
Electromagnetic Induction ◽  
Bubble Velocity

scholarly journals Local Velocity Measurement of Magnetic Fluid Flow Using Semiconductor Laser and Optical Fiber.

1993 ◽  
Vol 36 (4) ◽  
pp. 612-619 ◽  
Author(s):  
Masaaki Okubo ◽  
Hiroatu Endo ◽  
Shuzo Oshima ◽  
Yukio Ishibashi ◽  
Ryuichiro Yamane
Keyword(s):  
Fluid Flow ◽  
Optical Fiber ◽  
Semiconductor Laser ◽  
Magnetic Fluid ◽  
Velocity Measurement ◽  
Local Velocity

K-0304 Application of Wavelet to bubble velocity measurement with optical-fiber probe

2001 ◽  
Vol I.01.1 (0) ◽  
pp. 7-8
Author(s):  
Iwao OHTSU ◽  
Masaya Kondo ◽  
Taisuke YONOMOTO ◽  
Yoshinari ANODA
Keyword(s):  
Optical Fiber ◽  
Velocity Measurement ◽  
Bubble Velocity ◽  
Fiber Probe ◽  
Optical Fiber Probe

Measurement of Void Fraction in Magnetic Fluid Using Electromagnetic Induction

2003 ◽  
Vol 125 (3) ◽  
pp. 479-485 ◽  
Author(s):  
S. Shuchi ◽  
H. Yamaguchi ◽  
M. Takemura
Keyword(s):  
Numerical Analysis ◽  
Linear Relationship ◽  
Void Fraction ◽  
Magnetic Fluid ◽  
Electromagnetic Induction ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Actual Measurement ◽  
Drift Flux Model

A new technique of measuring void fraction in magnetic fluid using electromagnetic induction was proposed. In order to establish the measuring method, a feasibility study was conducted experimentally with an aid of numerical analysis. From the results of static experiment and numerical analysis, it was obtained that there exists a linear relationship between the void fraction and the measured electromotive force, when induction coils were connected in series for Helmholtz excitation coils, regardless of distribution of air bubbles in magnetic fluid. By applying the calibrated linear relationship to actual two-phase situations, it was revealed that the proposed method yielded quite reasonable account for measuring the void fraction, showing excellent agreement with the mechanical measured data in the two-phase flow apparatus, and with the published correlation of the drift flux model. From the results of the present investigation, it was proved that the proposed technique is feasible for the actual measurement of void fraction in two-phase flow of magnetic fluid.

Local velocity measurement of magnetic fluid flow using laser optical fiber sensor

1993 ◽  
Vol 122 (1-3) ◽  
pp. 200-203 ◽  
Author(s):  
Masaaki Okubo ◽  
Shuzo Oshima ◽  
Ryuichiro Yamane ◽  
Shinichi Kamiyama
Keyword(s):  
Fluid Flow ◽  
Optical Fiber ◽  
Magnetic Fluid ◽  
Velocity Measurement ◽  
Optical Fiber Sensor ◽  
Fiber Sensor ◽  
Local Velocity

Measurement of vapor void fraction in binary magnetic fluid using electromagnetic induction method

2014 ◽  
Author(s):  
Haruhiko Yamasaki ◽  
Shinya Umeda ◽  
Yuhiro Iwamoto ◽  
Hiroshi Yamaguchi
Keyword(s):  
Void Fraction ◽  
Magnetic Fluid ◽  
Electromagnetic Induction ◽  
Induction Method

Bubble velocity measurement with a recursive cross correlation PIV technique

2005 ◽  
Vol 16 (1) ◽  
pp. 35-46 ◽  
Author(s):  
Wen Cheng ◽  
Yuichi Murai ◽  
Toshio Sasaki ◽  
Fujio Yamamoto
Keyword(s):  
Velocity Measurement ◽  
Cross Correlation ◽  
Bubble Velocity ◽  
Piv Technique

Flow regime discrimination technique for gas—liquid two-phase flow in magnetic fluid

2008 ◽  
Vol 222 (6) ◽  
pp. 935-944 ◽  
Author(s):  
T Kuwahara ◽  
H Yamaguchi ◽  
F De Vuyst
Keyword(s):  
Flow Pattern ◽  
Flow Regime ◽  
Magnetic Fluid ◽  
Electromagnetic Induction ◽  
Two Phase Flow ◽  
Measuring Method ◽  
Phase Flow ◽  
Two Phase ◽  
Wave Patterns ◽  
Practical Measurement

This paper describes a new discrimination technique of flow regime (flow pattern) for gas—liquid two-phase flow in magnetic fluid. The proposed technique can identify the flow regime with simple devices by exploiting the wave patterns of signals obtained by electromagnetic induction. This utilization achieves a mechanically non-contact measuring method for objective fluids. In this study, verification experiments for practical measurement were conducted in upward gas—liquid two-phase flow. The results of the experiments have verified that the proposed measuring technique is useful as a method for flow regime discrimination.

Error in bubble velocity measurement using 4-sensor void probe due to interface deformation

2021 ◽  
Vol 379 ◽  
pp. 111234
Author(s):  
Akira Satou ◽  
Jun Sagawa ◽  
HaoMin Sun ◽  
Yasuteru Sibamoto ◽  
Taisuke Yonomoto
Keyword(s):  
Velocity Measurement ◽  
Bubble Velocity ◽  
Interface Deformation
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