Coherent Structures in a Non-equilibrium Large-Velocity-Defect Turbulent Boundary Layer

Wall pressure and coherent structures in a turbulent boundary layer on a cylinder

Stephen R. Snarski and Richard M. Lueptow Journal of Fluid Mechanics / Volume 286 / March 1995, pp 137 ­ 171 DOI: 10.1017/S0022112095000681, Published online: 26 April 2006 Link to this article: http://journals.cambridge.org/abstract_S0022112095000681 How to cite this article: Stephen R. Snarski and Richard M. Lueptow (1995). Wall pressure and coherent structures in a turbulent boundary layer o...

Optical Aberrations Caused by Coherent Structures in a Subsonic, Compressible, Turbulent Boundary Layer

by Jacob Allen Cress The relationship between optical aberrations and coherent structures in the turbulent boundary layer is investigated in a series of experiments. A statistical model is derived using the “extended” Strong Reynolds Analogy that allows the total temperature to vary and also presumes pressure fluctuations in the boundary layer are negligible compared to temperature fluctuations...

Relationships between Large-Scale Coherent Motions and Bursting Events in a Turbulent Boundary Layer

Deriving Lifetime Maps in the Time/Frequency Domain of Coherent Structures in the Turbulent Boundary Layer

The lifetimes of coherent structures are derived from data correlated over a 3 sensor array sampling streamwise sidewall pressure at high Reynolds number (> 108). The data were acquired at subsonic, transonic and supersonic speeds aboard a Tupolev Tu-144. The lifetimes are computed from a variant of the correlation length termed the lifelength. Characteristic lifelengths are estimated by fittin...

Wavelet Analysis to Detect Multi-scale Coherent Eddy Structures and Intermittency in Turbulent Boundary Layer

In the early stage of turbulence study, turbulent flow was deemed fully random and disorder motions of fluid particles. Thus physical quantity describing turbulence was considered as the composition of random fluctuations in spatial and temporal field. Reynoldsう1895えdivided the turbulent field into mean field and fluctuating field and then theories and methods based on statistics for turbulence...