| EPSRC Reference: |
GR/R85068/01 |
| Title: |
Strong turbulence at a free surface |
| Principal Investigator: |
Chaplin, Professor JR |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
School of Civil Eng and The Environment |
| Organisation: |
University of Southampton |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 September 2002 |
Ends: |
31 August 2005 |
Value (£): |
99,447
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| EPSRC Research Topic Classifications: |
| Coastal & Waterway Engineering |
Continuum Mechanics |
| Fluid Dynamics |
Numerical Analysis |
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| EPSRC Industrial Sector Classifications: |
| No relevance to Underpinning Sectors |
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| Panel History: |
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Summary on Grant Application Form |
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At a free surface, strong turbulence can create major disturbances, produce drops and bubbles and cause splashing. There have been almost no previous quantitative studies of this phenomenon. A framework for future research has been provided in two recent papers by Brocchini and Peregrine, the first identifying the physical significance of key dimensionless parameters, and the second setting out a basis for mathematical modelling.In this project turbulent flows will be studied by introducing obstacles into a stream in a laboratory flume. A range of flows will be explored, from those that only slightly disturb the surface through strongly disturbed surfaces, bubble and drop formation, to splashing flows. Simultaneous measurements will be made of the turbulence (with existing fibre-optic LDV equipment), and of the motion of the free surface.On the theoretical side, various numerical models for water waves will be adapted to include turbulent flow regions. Mathematical approaches will range from the use of averaged large-scale parameters to more detailed models based on the averaged equations. At each step we will refer to dedicated experimental observations. Several aspects are likely to provide computational challenges, especially the major source of turbulence at the foot of a breaker.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.soton.ac.uk |