Development and Application of Flow Rate Meter Based on a Laser Doppler Anemometer

Development and Application of Flow Rate Meter Based on a Laser Doppler Anemometer

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...

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Veröffentlicht in:Nihon Kikai Gakkai rombunshuu. B hen 2003/02/25, Vol.69(678), pp.354-359
Hauptverfasser: ISHIMA, Tsuneaki, NAKAMURA, Susumu, SUKENA, Ryoichi, OBOKATA, Tomio, KAWACHI, Katsuyoshi, KOBAYASHI, Kazumitsu
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Sprache:eng ; jpn
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Injection Rate
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container_end_page 359
container_issue 678
container_start_page 354
container_title Nihon Kikai Gakkai rombunshuu. B hen
container_volume 69
creator ISHIMA, Tsuneaki
NAKAMURA, Susumu
SUKENA, Ryoichi
OBOKATA, Tomio
KAWACHI, Katsuyoshi
KOBAYASHI, Kazumitsu
description 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.
doi_str_mv 10.1299/kikaib.69.354
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title Development and Application of Flow Rate Meter Based on a Laser Doppler Anemometer
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