Flow Resistance of a Vortex Shedder in a Circular Pipe

Flow Resistance of a Vortex Shedder in a Circular Pipe

Concerning the Karman vortex flowmeter, an experimental investigation was performed on the resistance of a vortex shedder in a turbulent flow through a circular pipe. The shedders are cylindrical bodies having various cross sections. The open ratio β ranged from 0.660 to 0.915 and the Reynolds numbe...

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Veröffentlicht in:Nihon Kikai Gakkai rombunshuu. B hen 1992/06/25, Vol.58(550), pp.1655-1660
Hauptverfasser: IGARASHI, Tamotsu, INAGAKI, Susumu, NISHIDA, Kouzou
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Sprache:eng ; jpn
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Opening Ratio
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container_issue 550
container_start_page 1655
container_title Nihon Kikai Gakkai rombunshuu. B hen
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creator IGARASHI, Tamotsu
INAGAKI, Susumu
NISHIDA, Kouzou
description Concerning the Karman vortex flowmeter, an experimental investigation was performed on the resistance of a vortex shedder in a turbulent flow through a circular pipe. The shedders are cylindrical bodies having various cross sections. The open ratio β ranged from 0.660 to 0.915 and the Reynolds number based on the diameter of the pipe and the mean velocity of the flow ranged from 1.9×104 to 2.47×105. The resistance coefficient K is given as follows regardless of the Reynolds number : K=C(1-β)/β2. The constant C is proportional to the drag coefficient, CD, of the shedder in a uniform flow, that is, C=0.8 CD.
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source Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; J-STAGE (Japan Science & Technology Information Aggregator, Electronic) Freely Available Titles - Japanese
subjects Opening Ratio
title Flow Resistance of a Vortex Shedder in a Circular Pipe
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