Abstract
Measuring the dynamics of the large-scale structures in turbulent flows is currently a significant challenge. One technique used to extend curĀrent experimental capabilities is to use Linear Stochastic Estimation and Proper Orthogonal Decomposition as complementary techniques to examine the dynamics of the energetic motions. Heretofore, it has not been possible to assess the accuracy of this technique without measuring the full velocity field. It is demonstrated here that the accuracy of the technique can be assessed a priori using a transfer function that relates the estimated and actual POD coefficients for the flow.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Bonnet, J. P., Cole, D.R., Deville, J., Glauser, M. N., and Ukeiley, L. S., (1994) Stochastic estimation and proper orthogonal decomposition: Complementary techniques for identifying structure, Expts. in Fluids, 17,307ā314.
Citriniti, J.,(1996) Experimental investigation into the large structures of the axisymmetric mixing layer using the Proper Orthogonal Decomposition, Ph. D. Thesis,SUNY Buffalo, Amherst, NY.
Ewing, D., and Citriniti, J. (1998) Examination of a LSE/POD complementary technique using Single and Multi-Time Information in the axisymmetric shear layer. In Simulation and Identification of Organized Structure in Flows., J. Soresen, et al. Eds., Kluwer.
Ewing, D. and Woodward, S. (2000) Evaluating the accuracy of the LSE-POD technique in an axisymmetric shear layer, in Advances in Turbulence VIII, C. Dopazo et al. Eds., CIMNE, Barcelona.
Lumley, J. L. (1967) Stochastic Tools, Academic Press, New York.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
Ā© 2002 Springer Science+Business Media Dordrecht
About this paper
Cite this paper
Ewing, D., Woodward, S. (2002). On Accurate Experimental Measurements of the Dynamics of Large Scale Structures in Turbulent Flows. In: Pollard, A., Candel, S. (eds) IUTAM Symposium on Turbulent Mixing and Combustion. Fluid Mechanics and Its Applications, vol 70. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-1998-8_6
Download citation
DOI: https://doi.org/10.1007/978-94-017-1998-8_6
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-481-6074-7
Online ISBN: 978-94-017-1998-8
eBook Packages: Springer Book Archive