Laminarisation of flow at low Reynolds number due to streamwise body force
- Submitting institution
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Liverpool John Moores University
- Unit of assessment
- 12 - Engineering
- Output identifier
- 1989
- Type
- D - Journal article
- DOI
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10.1017/jfm.2016.653
- Title of journal
- Journal of Fluid Mechanics
- Article number
- -
- First page
- 31
- Volume
- 809
- Issue
- -
- ISSN
- 0022-1120
- Open access status
- Compliant
- Month of publication
- November
- Year of publication
- 2016
- URL
-
-
- Supplementary information
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-
- Request cross-referral to
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- Output has been delayed by COVID-19
- No
- COVID-19 affected output statement
- -
- Forensic science
- No
- Criminology
- No
- Interdisciplinary
- No
- Number of additional authors
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2
- Research group(s)
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A - MEMARC
- Proposed double-weighted
- No
- Reserve for an output with double weighting
- No
- Additional information
- Turbulent flow re-laminarisation resulting from non-uniform body forces is a ubiquitous phenomenon in energy systems. This paper shows that, contrasting the conventional theory, the turbulence statistics are not laminarised or reduced by defining an apparent Reynolds number. The new theory is based on the new understanding that turbulent streaks under such conditions are ‘inactive’ turbulence activities. Independent experimental research has resulted in major findings for drag reduction (https://doi.org/10.1038/s41567-017-0018-3 in Nature Physics and https://doi.org/10.1007/s10494-018-9896-4 in Flow Turbulence Combustion). The results have been used as benchmark data for validating a number of CFD packages by STFC (C. Moulinec; charles.moulinec@stfc.ac.uk).
- Author contribution statement
- -
- Non-English
- No
- English abstract
- -