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A visual study of turbulent spots
Abstract
From the results of a flow visualization experiment, certain physical characteristics of a turbulent spot are suggested by the authors. The spot was artificially initiated at a point by a small intermittent wall jet. The authors also carried out experiments behind vibrating trip wires and observed the ‘signatures’ or ‘footprints’ of the A-shaped vortices seen by other workers. The fact that these ‘signatures’ are also observed in a turbulent spot leads one to suspect that these spots consist essentially of an array of A-shaped vortices. The formation of the spot is subsequently described in terms of three-dimensional disturbances of the cross-stream vortex filaments. The basic structure of the turbulent spot proposed here is similar to the suggested structure of fully developed turbulent boundary layers first put forward by Theodorsen (1955) and more recently by Bandyopadhyay & Head (1979).
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Citations
Cited by
The characteristics of low-speed streaks in the near-wall region of a turbulent boundary layer
Smith, C. R., & Metzler, S. P. (1983) · Journal of Fluid Mechanics · doi:10.1017/s0022112083000634 · Cited by 657
Flow transitions in the surface switching of rotating fluid
TASAKA, Y., & IIMA, M. (2009) · Journal of Fluid Mechanics · doi:10.1017/s0022112009991005 · Cited by 30
Metadata
- Authors
- Perry, A. E., Lim, T. T., & Teh, E. W.
- Venue
- Journal of Fluid Mechanics
- Publisher
- Cambridge University Press (CUP)
- Published
- 1981-03
- Volume
- 104
- Pages
- 387-405
- ISSN
- 0022-1120 (ISSN-L)
- 1469-7645
- OpenAlex
- W2017357673
- Cited by
- 162
- References
- 0
- FWCI
- 10.85
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: A visual study of turbulent spots. https://app.cochat.ai/papers/10.1017/s0022112081002966
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- Perry, A. E., Lim, T. T., & Teh, E. W. (1981). A visual study of turbulent spots. Journal of Fluid Mechanics. https://doi.org/10.1017/s0022112081002966
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
