### 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 K _{p} is not universal but depends on Reynolds number.

Original language | English |
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Title of host publication | IUTAM Symposium on Elementary Vortices and Coherent Structures |

Subtitle of host publication | Significance in Turbulence Dynamicsa |

Pages | 163-170 |

Number of pages | 8 |

Publication status | Published - Dec 1 2006 |

Externally published | Yes |

### Publication series

Name | Fluid Mechanics and its Applications |
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Volume | 79 |

ISSN (Print) | 0926-5112 |

### Fingerprint

### Keywords

- Pressure statistics
- Turbulence
- Universal spectral scaling

### ASJC Scopus subject areas

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

### Cite this

*IUTAM Symposium on Elementary Vortices and Coherent Structures: Significance in Turbulence Dynamicsa*(pp. 163-170). (Fluid Mechanics and its Applications; Vol. 79).

**Statistical property of pressure fluctuation in fully developed turbulence.** / Tsuji, Yoshiyuki; Ishihara, Takashi.

Research output: Chapter in Book/Report/Conference proceeding › Chapter

*IUTAM Symposium on Elementary Vortices and Coherent Structures: Significance in Turbulence Dynamicsa.*Fluid Mechanics and its Applications, vol. 79, pp. 163-170.

}

TY - CHAP

T1 - Statistical property of pressure fluctuation in fully developed turbulence

AU - Tsuji, Yoshiyuki

AU - Ishihara, Takashi

PY - 2006/12/1

Y1 - 2006/12/1

N2 - 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 K p is not universal but depends on Reynolds number.

AB - 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 K p is not universal but depends on Reynolds number.

KW - Pressure statistics

KW - Turbulence

KW - Universal spectral scaling

UR - http://www.scopus.com/inward/record.url?scp=84859856498&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84859856498&partnerID=8YFLogxK

M3 - Chapter

AN - SCOPUS:84859856498

SN - 9781402041808

T3 - Fluid Mechanics and its Applications

SP - 163

EP - 170

BT - IUTAM Symposium on Elementary Vortices and Coherent Structures

ER -