Transit-time estimation in turbulent flows

Author

Peters, Rolf ; Blischke, Frank ; Meyr, Heinrich

Author_Institution

Aachen Univ. of Technol., West Germany

Volume

36

Issue

1

fYear

1988

fDate

1/1/1988 12:00:00 AM

Firstpage

20

Lastpage

28

Abstract

The transit-time estimation problem in a two-sensor arrangement for noncontact flow measurement is considered. In a two-phase flow, due to turbulent motion and flow profile, the transit times of individual particles between the two sensors are not identical. Based on a macroscopic description of the turbulent effects, a process model is developed. An estimator for the mean transit time, i.e. the mean velocity of the flow particles, is obtained from the process model by utilizing a two-step algorithm. Experimental results show the advantages of this developed estimator in comparison to a peak-detecting correlator based on the simple time-delay process model

Keywords

delays; flow measurement; signal processing; turbulence; flow particle mean velocity; noncontact flow measurement; process model; transit-time estimation; turbulent effects; turbulent flows; two-phase flow; two-sensor arrangement; two-step algorithm; Correlators; Fluid flow measurement; Mathematical model; Maximum likelihood estimation; Signal processing; Signal processing algorithms; Sonar applications; Ultrasonic variables measurement; Velocity measurement; Yield estimation;

fLanguage

English

Journal_Title

Acoustics, Speech and Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

0096-3518

Type

jour

DOI

10.1109/29.1485

Filename

1485