Study on the Optimal Number of Transducers for Pipe Flow Rate Measurement Downstream of a Single Elbow Using the Ultrasonic Velocity Profile Method
Joint Authors
Treenuson, Weerachon
Kikura, Hiroshige
Tezuka, Kenichi
Tsuzuki, Nobuyushi
Wada, Sanehiro
Source
Science and Technology of Nuclear Installations
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-11-20
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
This paper presents a new estimation method to determine the optimal number of transducers using an Ultrasonic Velocity Profile (UVP) for accurate flow rate measurement downstream of a single elbow.
Since UVP can measure velocity profiles over a pipe diameter and calculate the flow rate by integrating these velocity profiles, it is also expected to obtain an accurate flow rate using multiple transducers under nondeveloped flow conditions formed downstream of an elbow.
The new estimation method employs a wave number of velocity profile fluctuations along a circle on a pipe cross-section using Fast Fourier Transform (FFT).
The optimal number of transducers is estimated based on the sampling theorem.
To evaluate this method, a preliminary experiment and numerical simulations using Computational Fluid Dynamics (CFD) are conducted.
The evaluating regions of velocity profiles are located at 3 times of a pipe diameter (3D) for the experiment, and 1 and 5D for the simulations downstream of an elbow, respectively.
Reynolds numbers for the experiment and simulations are set at 4×104 and 5×106, respectively.
These results indicate the efficiency of this new method.
American Psychological Association (APA)
Wada, Sanehiro& Tezuka, Kenichi& Treenuson, Weerachon& Tsuzuki, Nobuyushi& Kikura, Hiroshige. 2012. Study on the Optimal Number of Transducers for Pipe Flow Rate Measurement Downstream of a Single Elbow Using the Ultrasonic Velocity Profile Method. Science and Technology of Nuclear Installations،Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-473640
Modern Language Association (MLA)
Wada, Sanehiro…[et al.]. Study on the Optimal Number of Transducers for Pipe Flow Rate Measurement Downstream of a Single Elbow Using the Ultrasonic Velocity Profile Method. Science and Technology of Nuclear Installations No. 2012 (2012), pp.1-12.
https://search.emarefa.net/detail/BIM-473640
American Medical Association (AMA)
Wada, Sanehiro& Tezuka, Kenichi& Treenuson, Weerachon& Tsuzuki, Nobuyushi& Kikura, Hiroshige. Study on the Optimal Number of Transducers for Pipe Flow Rate Measurement Downstream of a Single Elbow Using the Ultrasonic Velocity Profile Method. Science and Technology of Nuclear Installations. 2012. Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-473640
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-473640