Annular Flumes

The annular flume is modeled after one at Delft University of Technology in the Netherlands. Annular flumes are ideal for long-term, replicated experiments on the effects of flow on biological and chemical processes, ecosystem processes, and sediment transport or distribution studies.


The flow is driven by rotation of a titanium and PVC top plate and the simultaneous counter-rotation of the main flume channel. Flow speeds of 0 - 25 cm sec-1 (mid-water depth) can be achieved. Flow direction can be reversed (e.g., mimicking tidal flows).

The annular flume has an outside diameter of 399 cm and a cross-channel width of 30 cm with maximum water depth is 40 cm. The volume with a 20-cm water depth is 362 L. The flume is constructed of seawater-resistant materials, PVC, optical quality glass, acrylic panels to facilitate access for sensors and sampling devices. A titanium plate mounted to the PVC top serves as a heat exchanger for temperature control between 10-20˚C.

Flow measurement via Particle-Image Velocimetry (PIV) may be possible. See Biological Physical Interactions Laboratory web page for more information.

Recently, three other annular flumes were relocated from this facility to the Rutgers Aquaculture Innovation Center in North Cape May, NJ.