Validation of the LES approach in Kiva-3V on a square duct geometry

V. Huijnen; L.M.T. Somers; R.S.G. Baert; L.P.H. Goey, de

doi:10.1002/nme.1393

Validation of the LES approach in Kiva-3V on a square duct geometry

V. Huijnen, L.M.T. Somers, R.S.G. Baert, L.P.H. Goey, de

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

The LES approach implemented in the Kiva-3V code is evaluated on the fully developed flow through a rectangular duct of square cross section. The Reynolds number based on the bulk velocity and duct width is 8000. The number of grid nodes is 96000.Three subgrid scale models are compared: the Smagorinsky, the WALE and the Vreman model.The results differ mainly in the predicted shear stress levels.The Smagorinsky model shows a large overprediction of the shear at the walls, whereas both the WALE and Vreman models perform better due to a reduced contribution of the subgrid-dissipation. In this study the WALE model gives the best results on simulating the secondary flows and turbulence statistics.

Original language	English
Pages (from-to)	907-919
Journal	International Journal for Numerical Methods in Engineering
Volume	64
Issue number	7
DOIs	https://doi.org/10.1002/nme.1393
Publication status	Published - 2005

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10.1002/nme.1393

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title = "Validation of the LES approach in Kiva-3V on a square duct geometry",

abstract = "The LES approach implemented in the Kiva-3V code is evaluated on the fully developed flow through a rectangular duct of square cross section. The Reynolds number based on the bulk velocity and duct width is 8000. The number of grid nodes is 96000.Three subgrid scale models are compared: the Smagorinsky, the WALE and the Vreman model.The results differ mainly in the predicted shear stress levels.The Smagorinsky model shows a large overprediction of the shear at the walls, whereas both the WALE and Vreman models perform better due to a reduced contribution of the subgrid-dissipation. In this study the WALE model gives the best results on simulating the secondary flows and turbulence statistics.",

author = "V. Huijnen and L.M.T. Somers and R.S.G. Baert and {Goey, de}, L.P.H.",

year = "2005",

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AU - Huijnen, V.

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AU - Baert, R.S.G.

AU - Goey, de, L.P.H.

PY - 2005

Y1 - 2005

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AB - The LES approach implemented in the Kiva-3V code is evaluated on the fully developed flow through a rectangular duct of square cross section. The Reynolds number based on the bulk velocity and duct width is 8000. The number of grid nodes is 96000.Three subgrid scale models are compared: the Smagorinsky, the WALE and the Vreman model.The results differ mainly in the predicted shear stress levels.The Smagorinsky model shows a large overprediction of the shear at the walls, whereas both the WALE and Vreman models perform better due to a reduced contribution of the subgrid-dissipation. In this study the WALE model gives the best results on simulating the secondary flows and turbulence statistics.

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JO - International Journal for Numerical Methods in Engineering

JF - International Journal for Numerical Methods in Engineering

IS - 7

ER -

Validation of the LES approach in Kiva-3V on a square duct geometry

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