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- W2564728733 abstract "The present work adopts two techniques, signal acquisition from sensors and particles images velocimetry (PIV), to calculate the size and the position of the vortex generated by the presence of an obstacle in a flow. The object used to generate the shedding flow is a flat plate put to several angles regarding the axis of the field of stream. Termistors that are bond to the plate and sensible to the variation of velocity of the fluid by the generation of vortex are used as sensors. Signals acquisitions are carried out using these sensors. This methodology is valid to determinate the vortex frequency and the flow velocity using the Strouhal number. The flow is lightened by a laser plan and visualized through acrylic pipes, before and after the plate. The images are captured by a video camera and stored on microcomputer. Successive images provide the determination of the velocity field of the particles and the tracing of their paths. The velocity field is obtained by the method of high density of traced solid particles, distributed in the flow, through the calculation of the crossed correlation function of the corresponding functions to two images obtained from different instants. The vortex frequency f is drawn as a function of the outflow Q measured using a variable area calibrated flow meter." @default.
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- W2564728733 date "2003-01-01" @default.
- W2564728733 modified "2023-09-26" @default.
- W2564728733 title "STUDY AND CALIBRATION OF VORTEX FLOW METER" @default.
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