Numerical study of acoustic radiation dynamics of a Rankine vortex |
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Authors: | O A Doronina P A Bakhvalov T K Kozubskaya |
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Abstract: | The paper continues investigations of a fundamental problem important for understanding the nature of vortex flows: sound radiation by a perturbed Rankine vortex. Results of numerical simulation are presented for both quadrupole and higher-mode radiations. The structure and dynamics of tonal acoustic radiation generated by a vortex are considered in detail. The transition of a Rankine vortex to a perturbed state under small external perturbation is considered. Calculations are performed using the EBR scheme implemented by NOISEtte software. |
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