Strongly swirling vortex chamber flows are examined experimentally and numerically using the Reynolds stress model (RSM). The predictions are compared against the experimental data in terms of the pressure drop across the chamber, the axial and tangential velocity components, and the radial pressure profiles. The overall agreement between the measurements and the predictions is reasonable. The predictions provided by the numerical model show clearly the forced and free vortex modes of the tangential velocity profile. The reverse flow (or back flow) inside the core and near the outlet, known from experiments, is captured by the numerical simulations. The swirl number has been found to have a measurable impact on the flow features. The vortex core size is shown to contract with the swirl number which leads to higher pressure drop, higher peak tangential velocity, and deeper radial pressure profiles near the axis of rotation. The adequate agreement between the experimental data and the simulations using RSM turbulence model provides a valid tool to study further these industrially important swirling flows.
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e-mail: jawarneh@hu.edu.jo
e-mail: vatistas@me.concordia.ca
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November 2006
Technical Papers
Reynolds Stress Model in the Prediction of Confined Turbulent Swirling Flows
Ali M. Jawarneh,
Ali M. Jawarneh
Assistant Professor
Department of Mechanical Engineering,
e-mail: jawarneh@hu.edu.jo
Hashemite University
, Zarqa 13115, Jordan
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Georgios H. Vatistas
Georgios H. Vatistas
Professor
Department of Mechanical and Industrial Engineering,
e-mail: vatistas@me.concordia.ca
Concordia University
1455 DeMaisonneuve Blvd. West, Montreal, H3G 1M8 Canada
Search for other works by this author on:
Ali M. Jawarneh
Assistant Professor
Department of Mechanical Engineering,
Hashemite University
, Zarqa 13115, Jordane-mail: jawarneh@hu.edu.jo
Georgios H. Vatistas
Professor
Department of Mechanical and Industrial Engineering,
Concordia University
1455 DeMaisonneuve Blvd. West, Montreal, H3G 1M8 Canadae-mail: vatistas@me.concordia.ca
J. Fluids Eng. Nov 2006, 128(6): 1377-1382 (6 pages)
Published Online: March 22, 2006
Article history
Received:
February 9, 2005
Revised:
March 22, 2006
Citation
Jawarneh, A. M., and Vatistas, G. H. (March 22, 2006). "Reynolds Stress Model in the Prediction of Confined Turbulent Swirling Flows." ASME. J. Fluids Eng. November 2006; 128(6): 1377–1382. https://doi.org/10.1115/1.2354530
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