This dataset essentially describes of the measurements in the carousel of the laboratory for Fluid Mechanics of the Delft University of Technology. A comprehensive documentation about the considered investigation, both concerning the theoretical background and concerning the elaboration of the experimental evidence can be found in: Booij, R., (1994), "Measurements of the flow field in a rotating annular flume ", Communications on Hydraulic and Geotechnical Engineering, report no. 94-2, (http://resolver.tudelft.nl/uuid:431193bc-8cfb-46ce-81fd-5034941b0769) The background report is in Dutch with extensive English explanation