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Laboratory Study of the Characteristics of Shallow Open Channel Flow Using Fiber-optic Laser Doppler Velocimetry

Jau‐Yau Lu, Lichuan Chen

Abstract

An experimental study was proposed to investigate the characteristics of shallow rain-impacted flow using a recirculating flume and an artificial rainfall simulator. The fibre-optic Laser Doppler Velocimetry (FLDV) technique was used to measure both the mean velocity profiles and the distributions of longitudinal and vertical turbulence intensities for very shallow flow conditions. The results were compared with other experimental studies.

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Available abstract

Key concepts: Flume, Laser Doppler velocimetry, Acoustic Doppler velocimetry, Velocimetry, Turbulence, Open-channel flow, Flow measurement, Doppler effect