WIT Press


Two-dimensional Velocity-field Measurement On A Sharp Open-channel Right-angle Junction By LDV

Price

Free (open access)

Paper DOI

10.2495/FSI030341

Volume

71

Pages

8

Published

2003

Size

346.19 kb

Author(s)

M. Shaban Eissa, J. Ignacio García, E. Calvo, J. Antonio García & L.A. Aísa

Abstract

Two-dimensional velocity-field measurement on a sharp open-channel right-angle junction by LDV M. Shaban Eissa, J. Ignacio Garcia, E. Calvo, J. Antonio Garcia & L.A. Aisa Fluid Mechanics Area, Centro Politkcnico Superior, Zaragoza University, Spain. Abstract The velocity field on a sharp right-angle channel junction, with zero slope angle, has been studied. A Laser Doppler Velocirnetry system for 2-D velocity data acquisition has been used at many measurement points. The two-dimensional velocity distribution, at the junction zone, has been measured for a mesh in four horizontal planes to acheve a detailed description of the flow division mechanism at the channel junction area. For the present work, a particular flow condition has been fixed when a hydraulic jump was formed at both channel parts. The channel has been made of Perspex to allow full optical measurement techniques access. Both channel arms are identical. The cross section is 240 mm wide by 160 mm hgh. The channel allows continuous

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