RIP CURRENT IDENTIFICATION USING PIV
PURPOSE
The purpose of this project is to investigate the potential for using PIV in wave basin rip current studies. Several previous studies have occurred in the UD wave basin using a bar-channel system where the channel was
incised down to the background slope. This incision, when scaled to protoype conditions, is large. This study seeks to modify the incision depth and investigate variability in flow patterns using PIV techniques. Liang He has performed her
Master's work on this topic.
FIGURE 1. An overhead view of the basin showing the sandbar and channel incision. The plus symbols are ground control points.
FIGURE 2. Single image snapshot collected from elevated scaffolding and geo-referenced to the still water level. The black squares are high density polyethylene chips that are used as flow seeding material.
Figure 3. A twenty-minute time average of the surface flow field for a fully-incised channel and 0.05 m monchromatic waves.
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