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On the Application of LES to Seal Geometries

Five Large Eddy Simulation (LES) and hybrid RANS-NLES (Reynolds-Averaged Navier-Stokes-Numerical-LES) methods are used to simulate flow through a labyrinth seal geometry and are contrasted with RANS solutions. Results show that LES and RANS-NLES is capable of accurately predicting flow behaviour of...

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Bibliographic Details
Published in:Flow, turbulence and combustion turbulence and combustion, 2013-12, Vol.91 (4), p.827-848
Main Authors: Tyacke, J., Jefferson-Loveday, R., Tucker, P. G.
Format: Article
Language:English
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Summary:Five Large Eddy Simulation (LES) and hybrid RANS-NLES (Reynolds-Averaged Navier-Stokes-Numerical-LES) methods are used to simulate flow through a labyrinth seal geometry and are contrasted with RANS solutions. Results show that LES and RANS-NLES is capable of accurately predicting flow behaviour of two seal flows with a scatter of less than 5 %. RANS solutions show the potential to perform poorly for the turbulence models tested. LES and hybrid RANS-NLES are found to be consistent and in agreement with measurements, providing a flexible numerical platform for design investigations. It also allows greater flow physics insights.
ISSN:1386-6184
1573-1987
DOI:10.1007/s10494-013-9480-x