Flow velocity field tomography using multiple ultrasonic beam detectors and high-order correlation analysis

Kyung Young Jhang, Takuso Sato

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A new method for tomographic reconstruction of a two-dimensional (2-D) velocity field that consists of a set of curved streams with corresponding constant curvatures along each stream with statistically independent fluctuations is proposed. In this method, five ultrasonic beams, which are arranged in proper positions and directions, are used as the line detectors and the fifth-order correlation analysis is applied to the detected data. In this case, the information about each stream is transformed into a corresponding peak in the fifth-order correlation space. Hence, the velocity field can be reconstructed by finding flow parameters from the measured correlation data in connection with the geometries of the measuring system. The usefulness of this method is confirmed by computer simulations as well as experiments that are carried out by using a 4.5-MHz ultrasonic wave system.

Original languageEnglish
Pages (from-to)1047-1052
Number of pages6
JournalJournal of the Acoustical Society of America
Volume86
Issue number3
DOIs
StatePublished - 1989 Jan 1

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flow velocity
velocity distribution
tomography
ultrasonics
detectors
data correlation
ultrasonic radiation
computerized simulation
curvature
geometry
Tomography
Usefulness
Computer Simulation
Geometry
Waves
Fluctuations
Experiment
Curvature

Cite this

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Flow velocity field tomography using multiple ultrasonic beam detectors and high-order correlation analysis. / Jhang, Kyung Young; Sato, Takuso.

In: Journal of the Acoustical Society of America, Vol. 86, No. 3, 01.01.1989, p. 1047-1052.

Research output: Contribution to journalArticle

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