### Abstract

An experimental investigation has been carried out in order to perform quadrant analysis (joint probability distribution) of the fluctuating velocity components u′, v′, and w′ in a two-dimensional fully-developed turbulent channel flow. The objective of the research is to confirm the earlier computational results and to demonstrate the usefulness of triple-wire techniques in obtaining real-time data both digitally and in an analog fashion. Quadrant plots of u′, v′, and w′ are obtained at three different Reynolds numbers (based on centerline velocity and channel half width) of 31,300, 5,800 and 3,300 at three different distances from the wall. The digitally obtained results agree well with the previous computations. In the analog data reduction technique quadrant plots of u′, v′ and w′ are obtained with an oscilloscope at different frequencies by using a low pass filter at 20, 200, 2,000 and 20,000 Hz. The plots are recorded on video tape along with the sound. The results show that most of the energy of u′ is at low frequencies whereas v′ has energy at higher frequencies.

Original language | English (US) |
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Pages | A7.1-A7.3 |

State | Published - Dec 1 1990 |

Event | Twelfth Turbulence Symposium - Rolla, MS, USA Duration: Sep 24 1990 → Sep 26 1990 |

### Other

Other | Twelfth Turbulence Symposium |
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City | Rolla, MS, USA |

Period | 9/24/90 → 9/26/90 |

### Fingerprint

### All Science Journal Classification (ASJC) codes

- Engineering(all)

### Cite this

*Quadrant analysis of fluctuating velocity components in a two-dimensional fully-developed turbulent channel flow using a triple-wire probe*. A7.1-A7.3. Paper presented at Twelfth Turbulence Symposium, Rolla, MS, USA, .

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**Quadrant analysis of fluctuating velocity components in a two-dimensional fully-developed turbulent channel flow using a triple-wire probe.** / Yavuzkurt, Savash.

Research output: Contribution to conference › Paper

TY - CONF

T1 - Quadrant analysis of fluctuating velocity components in a two-dimensional fully-developed turbulent channel flow using a triple-wire probe

AU - Yavuzkurt, Savash

PY - 1990/12/1

Y1 - 1990/12/1

N2 - An experimental investigation has been carried out in order to perform quadrant analysis (joint probability distribution) of the fluctuating velocity components u′, v′, and w′ in a two-dimensional fully-developed turbulent channel flow. The objective of the research is to confirm the earlier computational results and to demonstrate the usefulness of triple-wire techniques in obtaining real-time data both digitally and in an analog fashion. Quadrant plots of u′, v′, and w′ are obtained at three different Reynolds numbers (based on centerline velocity and channel half width) of 31,300, 5,800 and 3,300 at three different distances from the wall. The digitally obtained results agree well with the previous computations. In the analog data reduction technique quadrant plots of u′, v′ and w′ are obtained with an oscilloscope at different frequencies by using a low pass filter at 20, 200, 2,000 and 20,000 Hz. The plots are recorded on video tape along with the sound. The results show that most of the energy of u′ is at low frequencies whereas v′ has energy at higher frequencies.

AB - An experimental investigation has been carried out in order to perform quadrant analysis (joint probability distribution) of the fluctuating velocity components u′, v′, and w′ in a two-dimensional fully-developed turbulent channel flow. The objective of the research is to confirm the earlier computational results and to demonstrate the usefulness of triple-wire techniques in obtaining real-time data both digitally and in an analog fashion. Quadrant plots of u′, v′, and w′ are obtained at three different Reynolds numbers (based on centerline velocity and channel half width) of 31,300, 5,800 and 3,300 at three different distances from the wall. The digitally obtained results agree well with the previous computations. In the analog data reduction technique quadrant plots of u′, v′ and w′ are obtained with an oscilloscope at different frequencies by using a low pass filter at 20, 200, 2,000 and 20,000 Hz. The plots are recorded on video tape along with the sound. The results show that most of the energy of u′ is at low frequencies whereas v′ has energy at higher frequencies.

UR - http://www.scopus.com/inward/record.url?scp=0025537309&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0025537309&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:0025537309

SP - A7.1-A7.3

ER -