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http://dx.doi.org/10.6108/KSPE.2019.23.2.038

Acoustic Field Analysis using 1D Network Model in an Aero Gas Turbine Combustor  

Pyo, Yeongmin (School of Mechanical and Automotive Engineering, Gangneung-Wonju National University)
Park, Heeho (Gas Turbine Development Team, Hanwha Aerospace)
Jung, Seungchai (Gas Turbine Development Team, Hanwha Aerospace)
Kim, Daesik (School of Mechanical and Automotive Engineering, Gangneung-Wonju National University)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.23, no.2, 2019 , pp. 38-45 More about this Journal
Abstract
The present work suggests a numerical approach using a thermoacoustic network model for the eigenvalue calculation of thermoacoustic instability problems in an aero gas turbine combustor. The model is developed based on the conservation laws for mass, momentum, and energy between acoustic network elements with an area change. Acoustic field in a practical aero gas turbine combustor which has a complicated flow path is analyzed using the current model. The predictive capabilities of the current modeling approach are compared with the acoustic characteristics calculated using Helmholtz solver based on 3D finite element method(FEM).
Keywords
1D Network Model; Acoustic Analysis; Annular Gas Turbine Combustor; Acoustic Mode; Resonant Frequency;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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