Hydraulics & Waterways

Oral

397695 - In-Situ Particle Image Velocimetry for Fluvial and Environmental Flows

Wednesday, June 6
8:30 AM - 10:00 AM
Location: Regency Room
Co-Authors: Kyle Strom, Blacksburg, Virginia – Virginia Tech University

The use of particle image velocimetry (PIV) during the last three-and-a-half decades has met with wide success in studying the spatial and time-resolved features of a wide variety of fluid flows in the laboratory. However, to date, little headway has been made using PIV in full scale, in-situ experiments – most notably in the case of environmental flows. This is primarily due to limitations imposed by the sensitive nature of the PIV equipment. This limitation forces the researcher, who would otherwise benefit from studying flow phenomena in a field environment, to scale the the event in an effort to reproduce it in a laboratory setting. Here we present a portable PIV system that we have recently designed and developed to study environmental flows in the field. To date, it has been employed to study full-scale hydrodynamic turbulence in fluvial systems. Turbulence statistics for reaches of the Virginia section of the New River under various flow conditions are also reported with a particular emphasis on seasonal change.

Brandon Dillon

PhD Candidate
Virginia Tech University

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