Clicking "Download" will only navigate to the article page. To access the full article or download the PDF using your institute or individual membership, please click here for detailed instructions.
Author(s): O. Petersen; B. G. Krishnappan
Linked Author(s):
Keywords:
Abstract: A Laser Doppler Anemometer is used to measure the tangential and the vertical velocities and a Preston tube to measure bed shear stresses in a 5.0 m diameter rotating circular flume. Two cases are considered: only thelid rotating and the lid and flume rotating in oppo ite direction. The results from these measurements, which show that the flow- and turbulence-characteristics of the flume resembles what is known from channel flows, are used to verify a standard k – ε turbulence model. The 3-D numerical model is formulated in cylindricalpolar coordinates and the olution i obtained using the PHOENICS-code. A comparison shows that the model can reproduce the measured characteristics. The model is finally used to demonstrate how the choice of the ratio of the lid- to flume-speed can reduce the secondary circulation in different geometries.
DOI: https://doi.org/10.1080/00221686.1994.9728351
Year: 1994