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Fifth International Symposium on Turbulence and Shear Flow Phenomena
August, 27-29, 2007, Technische Universität München, Munich, Germany

DOI: 10.1615/TSFP5

THE EFFECT OF ENTRANCE CONDITIONS ON TURBULENT SWIRLING JETS AT LOW RE-NUMBERS

pages 923-928
DOI: 10.1615/TSFP5.1450
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要約

The turbulent flow in swirling jets with swirl number large enough for vortex breakdown is investigated numerically. Three variants for the entrance boundary conditions and disturbances are simulated starting from stagnant initial conditions. The formation of the recirculation zone and the associated vortical structures are documented and compared to flow visualisations.

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