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Inlet and outlet characteristics boundary conditions for large eddy simulations of turbomachinery

Odier, Nicolas and Poinsot, Thierry and Duchaine, Florent and Gicquel, Laurent and Moreau, Stéphane Inlet and outlet characteristics boundary conditions for large eddy simulations of turbomachinery. (2019) In: Turbo Expo 2019 Turbomachinery Technical Conference & Exposition presented by the ASME International Gas Turbine Institute, 17 June 2019 - 21 June 2019 (Phoenix, AZ, United States).

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Official URL: https://doi.org/10.1115/GT2019-90747

Abstract

Inlet an outlet boundary conditions are essential elements of any CFD predictions and this is even more so for turbomachinery Large Eddy Simulations, either applied to academic or industrial configurations. For compressible solvers, non-reflecting, characteristic inlet boundary condition imposing total pressure, total temperature and flow direction is usually needed, while an out- let relaxation methodology that automatically adapts the outlet static pressure as a function of the desired mass-flow rate rate is used for turbomachinery flow predictions. Establishing such a framework is clearly desirable especially for industrial use of LES. Development and validations remain necessary in such a fully unsteady context as detailled hereafter.

Item Type:Conference or Workshop Item (Paper)
Audience (journal):International peer-reviewed journal
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Centre Européen de Recherche et Formation Avancées en Calcul Scientifique - CERFACS (FRANCE)
Other partners > Université de Sherbrooke (CANADA)
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Deposited On:09 Apr 2020 16:49

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