FLOW VISUALIZATION STUDIES ON TRAPEZOIDAL BLUFF BODY FOR VORTEX FLOWMETER APPICATION

A. Venugopal, Amit Agrawal, S.V. Prabhu
Abstract:
In the present study, turbulent flow visualization is carried out to understand the vortex formation mechanism behind a trapezoidal bluff body, for vortex flowmeter application. The dye used for flow visualization is shear-thickening and high extension viscosity fluid, which can sustain turbulent separated flows. With the quantitative assessment of the images, the vortex frequency is computed which is in close match with the results obtained from Piezo-electric sensor based measurement. The study enhances the understanding of the complex vortex formation mechanism in the design of vortex flowmeter.
Keywords:
bluff body, Strouhal number, image processing, piezo-electric sensor
Download:
IMEKO-WC-2012-TC9-O1.pdf
DOI:
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Event details
Event name:
XX IMEKO World Congress
Title:

Metrology for Green Growth

Place:
Busan, REPUBLIC of KOREA
Time:
09 September 2012 - 12 September 2012