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An investigation using wavelet analysis into velocity perturbations under the influence of elevated freestream turbulence at transition onset

Abstract:

The development of streamwise-orientated disturbances at transition onset for zero-pressure gradient boundary layer flow under the influence of 1.3% freestream turbulence intensity is presented. The analysis concentrates on the development of turbulent spots and other coherent structures with the use of wavelet analysis. The turbulent spot structure is shown to change dramatically in shape, sign of perturbation velocity and energy content from the near wall region to the boundary layer edge. ...

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Publisher copy:
10.1115/GT2006-90987
Journal:
Proceedings of the ASME Turbo Expo More from this journal
Volume:
6 PART B
Pages:
1475-1484
Publication date:
2006-01-01
DOI:
Pubs id:
pubs:369511
UUID:
uuid:0b1b828c-0019-4c27-a950-23f4833769c5
Local pid:
pubs:369511
Source identifiers:
369511
Deposit date:
2013-11-16

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