Representation of the spatial correlation tensor of the velocity in free turbulent flows

被引：8
|
作者：
Druault, P [1 ]
Delville, J [1 ]
机构：
[1] Univ Poitiers, CNRS, UMR 6609, Lab Etud Aerodynam, F-86036 Poitiers, France
来源：
COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE B-MECANIQUE PHYSIQUE ASTRONOMIE | 2000年 / 328卷 / 02期
关键词：
spatial correlation tensor; proper orthogonal decomposition; turbulent plane mixing layer;
D O I：
10.1016/S1287-4620(00)00107-1
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
From experimental data obtained at a limited number of reference locations, a new method permitting to estimate the two-point spatial correlation tensor of the velocity on any mesh is presented. Firstly, a Gram-Charlier expansion is used to interpolate this tensor between reference points. Secondly, by using Proper Orthogonal Decomposition properties, this tensor is extrapolated on a larger mesh than the experimental one. An application of this procedure based on experimental turbulent plane mixing layer data is then shown. (C) 2000 Academie des sciences/Editions scientifiques et medicales Elsevier SAS.
引用
收藏
页码：135 / 141
页数：7
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