A new proposal for Lagrangian correlation coefficient

N. Altinsoy; A. B. Tuǧrul

doi:10.1016/S0142-727X(02)00190-X

A new proposal for Lagrangian correlation coefficient

N. Altinsoy, A. B. Tuǧrul^*

^*Corresponding author for this work

Energy Institute

Istanbul Technical University

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The statistical description of dispersion in turbulent flow was first considered by Taylor (Proc. London Math. Soc. 20 (1921) 196) and the statistical properties of the field were determined by Langrangian correlation coefficient R_L(τ). Frenkiel (Adv. Appl. Mech. 3 (1953) 61) has proposed several simple forms for R_L(τ). Some workers have investigated for a proper form of the Lagrangian correlation coefficient. In this work, a new proposal for the Lagrangian correlation is proposed and discussed. It can be written in general form with the one of the Frenkiel's (Adv. Appl. Mech. 3 (1953) 61) Lagrangian correlation coefficient. There is very satisfactory agreement between the new correlation and the experiment.

Original language	English
Pages (from-to)	766-768
Number of pages	3
Journal	International Journal of Heat and Fluid Flow
Volume	23
Issue number	6
DOIs	https://doi.org/10.1016/S0142-727X(02)00190-X
Publication status	Published - Dec 2002

Funding

This study was supported by Research Foundation of Istanbul Technical University.

Funders	Funder number
Istanbul Teknik Üniversitesi

Keywords

Lagrangian correlation coefficient
Mean squared displacement
Turbulent flow

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10.1016/S0142-727X(02)00190-X

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abstract = "The statistical description of dispersion in turbulent flow was first considered by Taylor (Proc. London Math. Soc. 20 (1921) 196) and the statistical properties of the field were determined by Langrangian correlation coefficient RL(τ). Frenkiel (Adv. Appl. Mech. 3 (1953) 61) has proposed several simple forms for RL(τ). Some workers have investigated for a proper form of the Lagrangian correlation coefficient. In this work, a new proposal for the Lagrangian correlation is proposed and discussed. It can be written in general form with the one of the Frenkiel's (Adv. Appl. Mech. 3 (1953) 61) Lagrangian correlation coefficient. There is very satisfactory agreement between the new correlation and the experiment.",

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AB - The statistical description of dispersion in turbulent flow was first considered by Taylor (Proc. London Math. Soc. 20 (1921) 196) and the statistical properties of the field were determined by Langrangian correlation coefficient RL(τ). Frenkiel (Adv. Appl. Mech. 3 (1953) 61) has proposed several simple forms for RL(τ). Some workers have investigated for a proper form of the Lagrangian correlation coefficient. In this work, a new proposal for the Lagrangian correlation is proposed and discussed. It can be written in general form with the one of the Frenkiel's (Adv. Appl. Mech. 3 (1953) 61) Lagrangian correlation coefficient. There is very satisfactory agreement between the new correlation and the experiment.

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A new proposal for Lagrangian correlation coefficient

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