### Abstract

The physics of the linear forcing of isotropic turbulence, allows for some useful estimates of the characteristic length scales of the turbulence produced during the statistically stationary phase. With such estimates we could practically define uniquely the stationary statistics by means of the boxsize of the simulation, the linear forcing parameter and the viscosity of each case. We use such estimations in the Karman-Howarth equation and we solve it in terms of the second and third order structure functions using a generalized Oberlack-Peters closure scheme. The resulting forms and the respective spectra are in very good agreement with experimental and DNS data.

Original language | English |
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Publication status | Published - Jan 1 2011 |

Event | 7th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2011 - Ottawa, Canada Duration: Jul 28 2011 → Jul 31 2011 |

### Other

Other | 7th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2011 |
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Country | Canada |

City | Ottawa |

Period | 7/28/11 → 7/31/11 |

### Fingerprint

### ASJC Scopus subject areas

- Fluid Flow and Transfer Processes

### Cite this

*Modeling the structure functions in linearly forced isotropic turbulence*. Paper presented at 7th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2011, Ottawa, Canada.

**Modeling the structure functions in linearly forced isotropic turbulence.** / Akylas, Evangelos; Gravanis, Elias; Fyrillas, Marios; Rouson, Damian I.; Kassinos, Stavros C.

Research output: Contribution to conference › Paper

}

TY - CONF

T1 - Modeling the structure functions in linearly forced isotropic turbulence

AU - Akylas, Evangelos

AU - Gravanis, Elias

AU - Fyrillas, Marios

AU - Rouson, Damian I.

AU - Kassinos, Stavros C.

PY - 2011/1/1

Y1 - 2011/1/1

N2 - The physics of the linear forcing of isotropic turbulence, allows for some useful estimates of the characteristic length scales of the turbulence produced during the statistically stationary phase. With such estimates we could practically define uniquely the stationary statistics by means of the boxsize of the simulation, the linear forcing parameter and the viscosity of each case. We use such estimations in the Karman-Howarth equation and we solve it in terms of the second and third order structure functions using a generalized Oberlack-Peters closure scheme. The resulting forms and the respective spectra are in very good agreement with experimental and DNS data.

AB - The physics of the linear forcing of isotropic turbulence, allows for some useful estimates of the characteristic length scales of the turbulence produced during the statistically stationary phase. With such estimates we could practically define uniquely the stationary statistics by means of the boxsize of the simulation, the linear forcing parameter and the viscosity of each case. We use such estimations in the Karman-Howarth equation and we solve it in terms of the second and third order structure functions using a generalized Oberlack-Peters closure scheme. The resulting forms and the respective spectra are in very good agreement with experimental and DNS data.

UR - http://www.scopus.com/inward/record.url?scp=85048564099&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85048564099&partnerID=8YFLogxK

M3 - Paper

ER -