Manual – Starflow QSD Model 6527B and 6537A
Unidata Manual - 6527B and 6537A Starflow QSD User Manual 08 05 2023.docx
Page 103
17.8.
Velocity Variations Due to Cross-Section Changes
If changes to the channel cross section introduce different velocity regimes within the view of
the Starflow QSD, the histogram is distorted. At low flows in clean streams, the beam can be
reflected for some distance and “see” unexpected velocities from some distance away.
Higher velocities could also be seen
at localised parts of the channel
where water accelerates around
obstacles or still carries the effects of
upstream higher velocities.