Measurements of Minute Unsteady Pressure on Three-Dimensional Fan with Arbitrary Axis Direction

Measurements of Minute Unsteady Pressure on Three-Dimensional Fan with Arbitrary Axis Direction

The present study is a fundamental approach to develop the measuring technology for minute fluctuating pressures on the three-dimensional blade surfaces of the fan which rotates with an arbitrary rotation-axis direction. In this situation, we are required to correct the centrifugal-force effect, the...

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Veröffentlicht in:International journal of fluid machinery and systems 2010, Vol.3 (1), p.1-10
Hauptverfasser: Hirata, Katsuya, Fuchi, Takuya, Onishi, Yusuke, Takushima, Akira, Sato, Seiji, Funaki, Jiro
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container_issue 1
container_start_page 1
container_title International journal of fluid machinery and systems
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creator Hirata, Katsuya
Fuchi, Takuya
Onishi, Yusuke
Takushima, Akira
Sato, Seiji
Funaki, Jiro
description The present study is a fundamental approach to develop the measuring technology for minute fluctuating pressures on the three-dimensional blade surfaces of the fan which rotates with an arbitrary rotation-axis direction. In this situation, we are required to correct the centrifugal-force effect, the gravitational-force effect and the other leading-error effects for accurate measurements of the minute pressures. The working fluid is air. A pressure transducer rotating with an arbitrary attitude is closely sealed by a twofold shroud system. The rotational motion with an arbitrary attitude is produced by fixing the pressure transducer to the cantilever which is connected to a motor-driven disc of 500mm in diameter and 5mm in thickness. As a result, we have quantitatively determined main governing effects upon the non-effective component of the pressure-transducer signal.
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title Measurements of Minute Unsteady Pressure on Three-Dimensional Fan with Arbitrary Axis Direction
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