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Please use this identifier to cite or link to this item: http://hdl.handle.net/10087/2523

Title: LDA流量計の開発と瞬時流量測定への応用
Other Titles: Development and Application of Flow Rate Meter Based on a Laser Doppler Anemometer
Authors: 石間, 経章
中村, 晋
助名, 亮一
小保方, 富夫
河内, 勝義
小林, 一光
Keywords: LDA
Flow Rate Measurement
Pulsating Flow
Intermittent Fuel Spray
Injection Rate
Issue Date: 25-Feb-2003
Publisher: 日本機械学会
Citation: 日本機械学會論文集 B編. 69(678), 354-359 (2003)
Abstract: An LDA flow rate meter which is based on the LDA (Laser Doppler anemometer) technique has been developed. The principle of the LDA flow rate meter applied for circular pipe is following. The center line velocity of pulsating pipe flow was measured by the LDA. The velocity distribution profile in the pipe cross section can be numerically estimated, and then the instantaneous flow rate was calculated by the integration of the profile. Firstly, it was applied and evaluated at the pulsating flow made by an artificial heat-lung system. The system has a double roller pump with a vinyl tube of Ω-shape. Secondly, an intermittent flow rate at high fuel pressure injection system was also measured. Swirl injector generated the oscillating pipe flow under high line pressure of 5 MPa at injection frequencies of 20 and 40 Hz. There was a little difficulty at the measurement of injection flow depending on the zero velocity shifting. Finally, a correction method of zero shifting was proposed and the applicability of the flow rate meter was demonstrated.
URI: http://hdl.handle.net/10087/2523
ISSN: 0387-5016
Appears in Collections:学術雑誌論文

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