Measurements of Minute Unsteady Pressure on Three-Dimensional Fan
The present study is a fundamental approach to reveal the minute fluctuating pressures on three-dimensional blade surfaces of a basic propeller fan. Because, among the concerning physical quantities, the unsteady pressures on the rotating blades give us useful information for the fan flow and its so...
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Veröffentlicht in: | TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C 2011, Vol.77(779), pp.2795-2804 |
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Hauptverfasser: | , , , , , , |
Format: | Artikel |
Sprache: | eng ; jpn |
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Online-Zugang: | Volltext |
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Zusammenfassung: | The present study is a fundamental approach to reveal the minute fluctuating pressures on three-dimensional blade surfaces of a basic propeller fan. Because, among the concerning physical quantities, the unsteady pressures on the rotating blades give us useful information for the fan flow and its sound-noise level. The authors correct the centrifugal-force effect, the gravitational-force effect and the other leading-error effects for accurate measurements of the minute pressures using a measuring technology developed by the authors (Hirata et al., 2009). As a result, we show the Reynolds-number effects and the spatial distributions on the blade of both time-mean pressure and pressure-fluctuation intensity. |
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ISSN: | 0387-5024 1884-8354 |
DOI: | 10.1299/kikaic.77.2795 |