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The purpose of the paper is to visualise the vortex shedding process behind a bluff body. It was considered a plane flow of a viscous fluid (water) around a ′′T′′ profile having the geometric sizes modified. It was measured the fluid flow speed in the section of the measurements and the frequency of the vortex detachment from the profile. The vortex development phenomenon depends by the profile’s geometry and the Reynolds number of the flow. The relation between Reynolds number and Strouhal number was obtained for different sizes ′′T′′ profiles. The experimental study is necessary to improve the vortex flowmeter performances.

EXPERIMENTAL RESULTS OF A VISCOUS FLOW AROUND A “T” PROFILE