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Students studying flow patterns using fluorescein dye in the racetrack flume.

Students studying flow patterns using fluorescein dye in the racetrack flume.
Students studying flow patterns using fluorescein dye in the racetrack flume.
Students studying flow patterns using fluorescein dye in the racetrack flume.
Students studying flow patterns using fluorescein dye in the racetrack flume.
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369307
Kleindinst, Thomas N.
Students studying flow patterns using fluorescein dye in the racetrack flume.
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04/14/2011
graphics/JP_Students/DSC_7574.jpg
Notes from Lauren Mulineaux;
We were working in the racetrack flume as part of a "Life in Boundary-Layer
Flow" instructional module in Biological Oceanography course. The students took part in three activities:
1) used a Laser Doppler Anemometer (LDA) to measure velocity profiles
2) used fluorescein dye to visualize flow around objects, and
3) observed particle transport and deposition patterns on a rough "seafloor".
Image of The Day caption:
Observed by postdoctoral scholar Shawn Arellano (back left), Joint Program students Oscar Sosa and Jeanette Wheeler watch as fellow student Sara Bosshart adds fluorescein dye to WHOI's racetrack flume to visualize how flowing water moves around a rock on the bottom. Currents near the seafloor influence dispersal of invertebrate larvae, distribution of food particles, and ability of suspension-feeders to capture those particles. The dye exercise was part of a unit on Life in Boundary-Layer Flow in the Biological Oceanography course taught by biologists Lauren Mullineaux (in red shirt) and Sam Laney. The students also used a Laser Doppler Anemometer to measure flow speeds and observed particle transport over and deposition onto a rough seafloor.
Photo by Tom Kleindinst
© Woods Hole Oceanographic Institution
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