CHARACTERIZATION OF THE ORGANIZATION IN SHEAR LAYERS VIA THE PROPER ORTHOGONAL DECOMPOSITION

被引:33
作者
DELVILLE, J
机构
[1] C.E.A.T., Laboratoire d'Etudes Aérodynamiques, URA CNRS 191, Poitiers cedex, F-86036
来源
APPLIED SCIENTIFIC RESEARCH | 1994年 / 53卷 / 3-4期
关键词
PROPER ORTHOGONAL DECOMPOSITION; HOT WIRE RAKES MEASUREMENTS; PLANE MIXING LAYER; SPACE-TIME CORRELATIONS; INERTIAL RANGE IN INHOMOGENEOUS FLOWS; COUPLING BETWEEN POD MODES;
D O I
10.1007/BF00849104
中图分类号
O414.1 [热力学];
学科分类号
摘要
Experiments are performed in an incompressible plane turbulent mixing layer, using various hot wire rake configurations. From these experiments, the Proper Orthogonal Decomposition is applied for kernels where the space-time correlation tensor is evaluated over different spatial meshes and velocity components configurations. The resulting decompositions are then discussed in terms of ''characterization of the organization of the flow'' for various scalar or vectorial approaches of the POD. An inertial range law is evidenced. The instantaneous contribution of the first modes of the POD to the organization of the flow is analyzed. A dynamical behavior for the organization of the flow is observed from the correlation between the first two modes contribution.
引用
收藏
页码:263 / 281
页数:19
相关论文
共 20 条
[1]  
ADRIAN JR, 1977, TURBULENCE LIQUIDS, P323
[2]   THE DYNAMICS OF COHERENT STRUCTURES IN THE WALL REGION OF A TURBULENT BOUNDARY-LAYER [J].
AUBRY, N ;
HOLMES, P ;
LUMLEY, JL ;
STONE, E .
JOURNAL OF FLUID MECHANICS, 1988, 192 :115-173
[3]  
BELLIN S, 1991, THESIS U POITIERS
[4]   THE PROPER ORTHOGONAL DECOMPOSITION IN THE ANALYSIS OF TURBULENT FLOWS [J].
BERKOOZ, G ;
HOLMES, P ;
LUMLEY, JL .
ANNUAL REVIEW OF FLUID MECHANICS, 1993, 25 :539-575
[5]  
DELVILLE J, 1993, 9TH P S TURB SHEAR F
[6]  
DELVILLE J, 1990, TURBULENCE COHERENT, P75
[7]  
GEORGE W, 1991, 2ND P WORLD C EXPT H
[8]  
GLAUSER M, 1987, THESIS BUFFALO U
[9]  
GLAUSER M, 1992, EXPT THERMAL FLUID S, V51, P617
[10]  
GLAUSER MN, 1989, TURBULENCE COHERENT, P253