Volume 2A: Turbomachinery 2014
DOI: 10.1115/gt2014-26354
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Numerical Investigation of High Bypass Ratio Fan Tone Noise

Abstract: Results of the high bypass ratio (>8) turbojet fan tone noise simulations in the cutback and sideline operating conditions are presented. Calculations are performed using the method of 3D unsteady numerical calculation of interaction between fan rows implemented in the 3DAS (3 Dimensional Acoustics Solver) CIAM in-house solver. The results of computations are compared with the experimental data for the fan under consideration, obtained in the anechoic chamber of CIAM C-3A acoustic test facility. Comparison … Show more

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Cited by 5 publications
(7 citation statements)
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“…The other types of boundary conditions, and the numerical schemes, used for the nonlinear frequency domain calculations are common for all methods of calculations, implemented in 3DAS solver, and their description can be found in literature. 16,17,19 The principles of mode selection…”
Section: The Methods Of a Multistage Turbomachine Tone Noise Calculationmentioning
confidence: 99%
See 3 more Smart Citations
“…The other types of boundary conditions, and the numerical schemes, used for the nonlinear frequency domain calculations are common for all methods of calculations, implemented in 3DAS solver, and their description can be found in literature. 16,17,19 The principles of mode selection…”
Section: The Methods Of a Multistage Turbomachine Tone Noise Calculationmentioning
confidence: 99%
“…3DAS solver admits calculations either in the time domain [16][17][18] or in the frequency domain for the specified set of harmonics. 8,9,19 The calculation in the frequency domain can be performed using either linear 8,9 or nonlinear inviscid equations for disturbances. 19 The method for nonlinear calculations in the frequency domain is based on the harmonic balance approach.…”
Section: Das Solvermentioning
confidence: 99%
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“…Программный комплекс был разработан для расчета тонального шума, генерируемого турбомашинами в ближнем и дальнем акустическом поле. Он использовался для расчета тонального шума различных типов вентиляторов [4,9], турбин [4], открытых роторов [5] и компрессоров низкого давления [10].…”
Section: Introductionunclassified