In order to improve the multi-dimensional numerical simulation of horizontal two-phase flows, the knowledge of local turbulent quantities is of great importance. In horizontal stratified flows, the denser (first) phase flows as a film beneath the other (second) phase. Under counter-current conditions, the second phase flows into the opposite direction of the first phase. In the present investigations a liquid film flows counter-currently to a gas flow. According to the flow rates of both phases, different flow regimes set in. In supercritical flows (Fr>1), the height of the liquid film increases in flow direction, while it decreases in subcritical flows (Fr<1). For sufficiently high gas flow rates the upper part of the liquid film flows into direction of the gas flow, while the lower part still flows into its initial direction opposite to the gas flow. Only a reduced amount of water reaches the end of the test section. This flow regime is referred to as partially reversed flow. The presented local measurements provide not only the mean and rms-velocities of the liquid film, but also the corresponding Reynolds stresses. Local measurements are carried out at two different positions along the test section for various boundary conditions. Furthermore, the liquid injection height has been varied. The kinematic and turbulent structures of the different flow patterns are presented and compared.
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ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering
July 17–20, 2006
Miami, Florida, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-4751-9
PROCEEDINGS PAPER
Turbulence Structures in Horizontal Two-Phase Flows Under Counter-Current Conditions
Thomas D. Sta¨bler,
Thomas D. Sta¨bler
Forschungszentrum Karlsruhe GmbH, Karlsruhe, Germany
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Leonhard Meyer,
Leonhard Meyer
Forschungszentrum Karlsruhe GmbH, Karlsruhe, Germany
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Thomas Schulenberg,
Thomas Schulenberg
Forschungszentrum Karlsruhe GmbH, Karlsruhe, Germany
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Eckart Laurien
Eckart Laurien
University of Stuttgart, Stuttgart, Germany
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Thomas D. Sta¨bler
Forschungszentrum Karlsruhe GmbH, Karlsruhe, Germany
Leonhard Meyer
Forschungszentrum Karlsruhe GmbH, Karlsruhe, Germany
Thomas Schulenberg
Forschungszentrum Karlsruhe GmbH, Karlsruhe, Germany
Eckart Laurien
University of Stuttgart, Stuttgart, Germany
Paper No:
FEDSM2006-98211, pp. 61-66; 6 pages
Published Online:
September 5, 2008
Citation
Sta¨bler, TD, Meyer, L, Schulenberg, T, & Laurien, E. "Turbulence Structures in Horizontal Two-Phase Flows Under Counter-Current Conditions." Proceedings of the ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering. Volume 2: Fora. Miami, Florida, USA. July 17–20, 2006. pp. 61-66. ASME. https://doi.org/10.1115/FEDSM2006-98211
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