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Multiple-Frequency Phase-Lagged Unsteady Simulations of Experimental Axial Compressor

Castillon, Lionel and Gourdain, Nicolas and Ottavy, Xavier Multiple-Frequency Phase-Lagged Unsteady Simulations of Experimental Axial Compressor. (2015) Journal of Propulsion and Power, 31 (1). 444-455. ISSN 0748-4658

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Official URL: http://dx.doi.org/10.2514/1.B35247

Abstract

This paper presents an evaluation of the multiple-frequency phase-lagged approach, which enables the performance of unsteady Reynolds-averaged Navier–Stokes simulations on multistage turbomachinery configurations using a time-marching method. The major advantage of this approach is to reduce the computational domain to one single blade passage per row. The first part of the paper presents the method and discusses the associated assumptions and limitations. The method is then evaluated on the axial compressor configuration “Compresseur de Recherche pour l’Etude des effets Aérodynamiques et TEchnologiques” investigated experimentally at Laboratory of Fluid Mechanics and Acoustics. The computational fluid dynamics results are analyzed and compared both with experimental data and with a reference multipassage computation based on a sliding mesh approach. These comparisons enable the highlighting of the interests of this approach but also the underlining of its limits. The multiple-frequency phase-lagged approach enables the simulation of unsteady effects on a multistage turbomachinery and access to unsteady information that would not be available with a mixing-plane approach. However, if the method is capable of capturing unsteady effects linked to the adjacent upstream and downstream blade rows passing frequency, it fails modeling clocking effects, i.e., the relative influence between rows N and N+2. Read More: http://arc.aiaa.org/doi/abs/10.2514/1.B35247

Item Type:Article
Additional Information:Thanks to AIAA editor. The definitive version is available at https://www.aiaa.org/ The original PDF of the article can be found at Journal of Propulsion and Power website: http://arc.aiaa.org/doi/10.2514/1.B35247
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
French research institutions > Office National d'Etudes et Recherches Aérospatiales - ONERA (FRANCE)
Other partners > Ecole Centrale de Lyon (FRANCE)
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Deposited By: Nicolas GOURDAIN
Deposited On:25 Aug 2016 09:23

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