Two-dimensional analysis of a simplified fluidic oscillator

In order to investigate a self-excited oscillatory phenomenon of a two-dimensional confined jet with a cylinder as a downstream target, the authors conduct two-dimensional numerical analyses based on vorticity ζ and stream function ψ using a finite-difference discretisation method. At first, confirm...

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Main Authors: Katsuya HIRATA, Naoki YABUKI, Kazuki UMEMURA, Tatsuya INOUE, Hirohisa WAKISAKA, Hirochika TANIGAWA
Format: Article
Language:English
Published: The Japan Society of Mechanical Engineers 2018-03-01
Series:Mechanical Engineering Journal
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/mej/5/2/5_17-00294/_pdf/-char/en
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author Katsuya HIRATA
Naoki YABUKI
Kazuki UMEMURA
Tatsuya INOUE
Hirohisa WAKISAKA
Hirochika TANIGAWA
author_facet Katsuya HIRATA
Naoki YABUKI
Kazuki UMEMURA
Tatsuya INOUE
Hirohisa WAKISAKA
Hirochika TANIGAWA
author_sort Katsuya HIRATA
collection DOAJ
description In order to investigate a self-excited oscillatory phenomenon of a two-dimensional confined jet with a cylinder as a downstream target, the authors conduct two-dimensional numerical analyses based on vorticity ζ and stream function ψ using a finite-difference discretisation method. At first, confirming the reliability and accuracy of the present analyses, the authors examine two kinds of preliminary tests prior to the main test. Aa a result, the authors reveal (1) the two-dimensionality of the phenomenon by comparing computations with experiments, and (2) the importance and complexity of the upstream of the downstream target.
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spelling doaj.art-55809c83f0ed4d13b9f3c341880218312022-12-21T20:31:01ZengThe Japan Society of Mechanical EngineersMechanical Engineering Journal2187-97452018-03-015217-0029417-0029410.1299/mej.17-00294mejTwo-dimensional analysis of a simplified fluidic oscillatorKatsuya HIRATA0Naoki YABUKI1Kazuki UMEMURA2Tatsuya INOUE3Hirohisa WAKISAKA4Hirochika TANIGAWA5Department of Mechanical Engineering, Doshisha UniversityDepartment of Mechanical Engineering, Doshisha UniversityDepartment of Mechanical Engineering, Doshisha UniversityDepartment of Mechanical Engineering, Doshisha UniversityDepartment of Mechanical Engineering, Doshisha UniversityDepartment of Mechanical Engineering, Maizuru National College of TechnologyIn order to investigate a self-excited oscillatory phenomenon of a two-dimensional confined jet with a cylinder as a downstream target, the authors conduct two-dimensional numerical analyses based on vorticity ζ and stream function ψ using a finite-difference discretisation method. At first, confirming the reliability and accuracy of the present analyses, the authors examine two kinds of preliminary tests prior to the main test. Aa a result, the authors reveal (1) the two-dimensionality of the phenomenon by comparing computations with experiments, and (2) the importance and complexity of the upstream of the downstream target.https://www.jstage.jst.go.jp/article/mej/5/2/5_17-00294/_pdf/-char/enflowmeterfluid logicfluidic oscillatorfluidicsflip-flop jetfdmmulti-connectedness
spellingShingle Katsuya HIRATA
Naoki YABUKI
Kazuki UMEMURA
Tatsuya INOUE
Hirohisa WAKISAKA
Hirochika TANIGAWA
Two-dimensional analysis of a simplified fluidic oscillator
Mechanical Engineering Journal
flowmeter
fluid logic
fluidic oscillator
fluidics
flip-flop jet
fdm
multi-connectedness
title Two-dimensional analysis of a simplified fluidic oscillator
title_full Two-dimensional analysis of a simplified fluidic oscillator
title_fullStr Two-dimensional analysis of a simplified fluidic oscillator
title_full_unstemmed Two-dimensional analysis of a simplified fluidic oscillator
title_short Two-dimensional analysis of a simplified fluidic oscillator
title_sort two dimensional analysis of a simplified fluidic oscillator
topic flowmeter
fluid logic
fluidic oscillator
fluidics
flip-flop jet
fdm
multi-connectedness
url https://www.jstage.jst.go.jp/article/mej/5/2/5_17-00294/_pdf/-char/en
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