Abo Bibliothek: Guest
Seventh International Symposium on Turbulence and Shear Flow Phenomena
July, 28-31, 2011, Ottawa Convention Centre, Ottawa, Canada

DOI: 10.1615/TSFP7

DEVELOPMENTS IN TWO-TIME-SCALE TURBULENCE MODELS APPLIED TO NON-EQUILIBRIUM FLOWS

pages 1-6
DOI: 10.1615/TSFP7.1270
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ABSTRAKT

Multiple-time-scale models have been recently studied by the authors with focus on predicting non-equilibrium flows. Two two-time-scale linear-eddy-viscosity models have been further developed, improved and tested over a wide range of test cases, including simple flows, such as channel flows and zero pressure gradient boundary layers, and more complex flows such as homogeneous shear flows, adverse-pressure-gradient, favourable-pressure-gradient and oscillatory boundary layers, normally strained flows, fully developed ramp up and oscillatory pipe flows and steady backward facing step flows. The two new models performed reasonably well in all test cases, specially when taking into account the inherent limitations of linear-eddy-viscosity schemes.

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