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Marker Method of Determining the Speed of Fluid Movement During the Flow Visualization

  • Mariusz R. Rzasa
  • Beata Czapla-Nielacna
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 548)

Abstract

This paper contains a description of a method applied for determination of local velocities of liquid flow around a vortex generator. The postulated method involves the visualization of von Karman Vortex Street and determination of the local velocities of the liquid. The investigation is based on capturing images of tracing particles introduced into a liquid flow. The study is performed for various exposition times and the traces of the particle motion are registered in the image captures. The analysis of the images leads to the determination of the length of the traces and on this basis the velocity of the liquid flow can be calculated. The presented method yields an accuracy in the range of a few per cent in relation to the measured value. This paper also contain the description of the measurement and design of the experimental setup. The results of the study are presented along with the assessment of the measurement uncertainty.

Keywords

Liquid flow visualization Liquid flow measurement Vortex flow meter 

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Opole University of TechnologyOpolePoland

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