Aerodynamic noise reduction of a pantograph panhead by applying a flow control method

T. Mitsumoji, T. Sueki, N. Yamazaki, Y. Sato, M. Ikeda, R. Takinami, H. Gejima, Koji Fukagata

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

To reduce aerodynamic noise generated by a pantograph panhead, a flow control method is applied to the panhead. First, a plasma actuator is applied to the panhead surface to verify that flow control can control flow separation and reduce turbulence intensity behind the panhead. Second, based on the flow control mechanism derived from the experiments applying the plasma actuator, a more practical flow control method is proposed using air suction as an alternative. Experimental results show that air suction near the separation point can reduce narrow band aerodynamic noise from the panhead.

Original languageEnglish
Pages (from-to)515-522
Number of pages8
JournalNotes on Numerical Fluid Mechanics and Multidisciplinary Design
Volume126
DOIs
Publication statusPublished - 2014

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Pantographs
Noise abatement
Flow control
Aerodynamics
Actuators
Plasmas
Flow separation
Air
Turbulence
Experiments

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

Cite this

Aerodynamic noise reduction of a pantograph panhead by applying a flow control method. / Mitsumoji, T.; Sueki, T.; Yamazaki, N.; Sato, Y.; Ikeda, M.; Takinami, R.; Gejima, H.; Fukagata, Koji.

In: Notes on Numerical Fluid Mechanics and Multidisciplinary Design, Vol. 126, 2014, p. 515-522.

Research output: Contribution to journalArticle

Mitsumoji, T. ; Sueki, T. ; Yamazaki, N. ; Sato, Y. ; Ikeda, M. ; Takinami, R. ; Gejima, H. ; Fukagata, Koji. / Aerodynamic noise reduction of a pantograph panhead by applying a flow control method. In: Notes on Numerical Fluid Mechanics and Multidisciplinary Design. 2014 ; Vol. 126. pp. 515-522.
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