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http://dx.doi.org/10.6108/KSPE.2017.21.6.049

3D Acoustic Field Analysis in an Annular Combustor System under a Cold Flow Condition  

Lim, Jaeyoung (School of Mechanical and Automotive Engineering, Gangneung-Wonju National University)
Kim, Daesik (School of Mechanical and Automotive Engineering, Gangneung-Wonju National University)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.21, no.6, 2017 , pp. 49-56 More about this Journal
Abstract
The current study has developed an in-house 3D FEM code in order to model thermoacoustic problems in an annular system and compared the acoustic field calculation results with measured ones from a benchmark combustor. From the comparison of calculation results with the measured data, the current acoustic code could successfully capture the various acoustic mode found in the annular system. In addition, it was found that the transverse waves in the combustor were strongly affected by the nozzle acoustic impedances, as well, the pressure distributions were closely related with the combustor acoustic pressure field.
Keywords
Combustion Instability; Thermoacoustic Analysis; Helmholtz Solver; Annular Combustor; Transverse Mode;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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