Statistical property of pressure fluctuation in fully developed turbulence

Yoshiyuki Tsuji, Takashi Ishihara

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Citation (Scopus)

Abstract

Pressure fluctuation is measured by using a condenser microphone and piezoresistive transducer. In order to confirm the experimental accuracy, measured data are compared with direct numerical simulation. This basic test encourages us to study small-scale statistics from the standpoint of Kolmogorov universal scaling. The power-law exponent and proportional constant of normalized pressure spectrum are discussed. The clear power law with scaling exponent -7/3 is confirmed in the range of Rλ ≥ 600. These Reynolds numbers are much larger than those in velocity fluctuation for achieving the Kolmogorov scaling. The spectral constant Kp is not universal but depends on Reynolds number.

Original languageEnglish
Title of host publicationIUTAM Symposium on Elementary Vortices and Coherent Structures
Subtitle of host publicationSignificance in Turbulence Dynamicsa
PublisherKluwer Academic Publishers
Pages163-170
Number of pages8
ISBN (Print)9781402041808
DOIs
Publication statusPublished - Jan 1 2006
Externally publishedYes

Publication series

NameFluid Mechanics and its Applications
Volume79
ISSN (Print)0926-5112

Keywords

  • Pressure statistics
  • Turbulence
  • Universal spectral scaling

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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  • Cite this

    Tsuji, Y., & Ishihara, T. (2006). Statistical property of pressure fluctuation in fully developed turbulence. In IUTAM Symposium on Elementary Vortices and Coherent Structures: Significance in Turbulence Dynamicsa (pp. 163-170). (Fluid Mechanics and its Applications; Vol. 79). Kluwer Academic Publishers. https://doi.org/10.1007/1-4020-4181-0_17