# Modal time correlation functions for homogeneous isotropic turbulence in a projection operator method

## 抄録

Applying a projection operator method to homogeneous isotropic turbulence in the Lagrangian and Eulerian specifications of the flow field, we obtain a closure equation, which is called the similarity approximation (SA) equation, for the time correlation function. We compare its solutions with the time correlation function obtained from direct numerical simulation in the Eulerian specification and with that obtained from direct interaction approximation in the Lagrangian specification. Results of the comparison show that the SA equation can express time correlation for homogeneous isotropic turbulence in the Lagrangian and Eulerian specifications.

本文言語 英語 055102 Physics of Fluids 27 5 https://doi.org/10.1063/1.4919785 出版済み - 5月 6 2015

• 計算力学
• 凝縮系物理学
• 材料力学
• 機械工学
• 流体および伝熱

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