On the validity of Taylor's hypothesis in wall turbulence
AuthorUddin, A. K. Mesbah; Perry, A. E.; MARUSIC, IVAN
Source TitleJournal of Mechanical Engineering Research and Development
AffiliationEngineering: Department of Mechanical and Manufacturing Engineering
Document TypeJournal (Paginated)
CitationsUddin, A. K. M., Perry, A. E. & Marusic, I. (1997). On the validity of Taylor's hypothesis in wall turbulence. Journal of Mechanical Engineering Research and Development, 19-20, 57-66.
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The validity of Taylor’s hypothesis of frozen turbulence has been the issue of much debate, especially when applied to flows with strong shear and high turbulence intensities. In the past, Taylor’s hypothesis was used by various researchers for the quantitative interpretation of the structure angle of the eddies on the basis of double-velocity correlations (eg. Alving et al. ) or velocity-wall pressure or velocity-wall shear stress correlations (e.g. Brown & Thomas  , Rajagopalan & Antonia . In light of the ambiguity associated with Taylor’s hypothesis, naturally, there are resultant uncertainties in terms of the measured structure angle. Subsequently there is a need to investigate how do these uncertainties effect the structure angle measurements and as well as to examine the validity of Taylor’s hypothesis when applied to two-point double-velocity correlation measurements in an anisotropic shear flow.
Keywordsturbulence; boundary layer; Taylor’s hypothesis
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