T.P.Konovalyuk Features of sound field structure at interaction of the point vortices |
Acoustic bulletin, Vol. 15 ¹ 1, (2012) |
| Within the frameworks of the point vortex model and the Lighthill's acoustic analogy, the sound fields produced by a direct and exchange interactions of three point vortices with the intensities of κ1=κ2=κ3. in an ideal unbounded liquid are computed and analyzed in wide range of geometrical parameters. The effect of rotation of the directivity pattern is detected. The relations between the rotations of the directivity pattern and vortex system are specified. The possibility of rotation of the the vortex system and its sound field both in the same and opposite directions is demonstrated. \keywordsE{point vortices, rotation of the directivity pattern, rotation of the vortex system. |
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KEY WORDS: point vortices, rotation of the directivity pattern, rotation of the vortex system |
| TEXT LANGUAGE: Russian |