| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 755189 | Applied Acoustics | 2008 | 15 Pages |
Abstract
Spectral features of conical and cylindrical Hartmann resonators are compared in this work through a systematic parametric study. Experiments have been conducted by varying the following parameters: stand-off distance, nozzle pressure ratio and cone angle. Resonance frequencies of conical cavities are found to be higher than those of cylindrical cavities of the same length. Low (∼kHz) and high frequency (∼10 kHz) modes are observed in the spectra. Low frequency modes show an oscillatory trend with stand-off distance. The high frequency tones are found to be independent of cavity geometry and cavity length, and are similar to jet impingement tones.
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Authors
G.J. Sreejith, S. Narayanan, T.J.S. Jothi, K. Srinivasan,