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Proceedings Paper

Experimental study on passive scalar diffusion in a turbulent shearless mixing-layer by Mie scattering diffusion and PIV
Author(s): X. H. Zhang; Z. S. Zhang; M. Ayrault; S. Simoens; F. Laadhari
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Paper Abstract

The experiments are run in an inhomogeneous turbulent shearless layer generated in a wind tunnel with two different meshes. A PIV system synchronized simultaneously with a Mie scattering diffusion concentration system is used in order to obtain the velocity and concentration fields at the same instant. We present here some statistical results for both velocity and concentration and also the mean flux. Filtering and subgrid scale modeling are applied to experimental velocity and concentration field in order to check the effect of the length of filter and the accuracy of subgrid model of LES.

Paper Details

Date Published: 29 April 2003
PDF: 8 pages
Proc. SPIE 5058, Optical Technology and Image Processing for Fluids and Solids Diagnostics 2002, (29 April 2003); doi: 10.1117/12.509503
Show Author Affiliations
X. H. Zhang, Tsinghua Univ. (China)
Z. S. Zhang, Tsinghua Univ. (China)
M. Ayrault, Ecole Centrale de Lyon (France)
S. Simoens, Ecole Centrale de Lyon (France)
F. Laadhari, Ecole Centrale de Lyon (France)


Published in SPIE Proceedings Vol. 5058:
Optical Technology and Image Processing for Fluids and Solids Diagnostics 2002
Gong Xin Shen; Soyoung S. Cha; Fu-Pen Chiang; Carolyn R. Mercer, Editor(s)

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