| EPSRC Reference: |
EP/J018163/1 |
| Title: |
Hibernating Turbulence |
| Principal Investigator: |
Poole, Professor RJ |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Centre for Engineering Dynamics |
| Organisation: |
University of Liverpool |
| Scheme: |
Standard Research |
| Starts: |
09 July 2012 |
Ends: |
31 March 2015 |
Value (£): |
214,634
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| Related Grants: |
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| Panel History: |
| Panel Date | Panel Name | Outcome |
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20 Mar 2012
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Engineering Prioritisation Meeting - 20 March 2012
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Announced
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Summary on Grant Application Form |
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Recent Direct Numerical Simulations (DNS) of low Reynolds number (Re=3600) turbulent channel flow of dilute polymer solutions have discovered - even in the Newtonian limit - intervals of so-called "hibernating" turbulence (Xi and Graham (2010a)). In this state many features of fully drag-reduced flow are observed (i.e. features associated with Virk's Maximum Drag Reduction Asymptote MDRA Virk (1975)); weak streamwise structures, reduced Reynolds shear stresses and, as a consequence, enhanced mass flux (at constant driving pressure) i.e. drag reduction occurs. The aim of this project is to search for experimental verification of this hibernating turbulence and extract the coherent structures within it over a range of Reynolds numbers. Ultimately, enhanced knowledge of hibernation can pave the way for novel flow-control strategies to maintain this hibernating state and therefore substantially reduce skin friction drag.
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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.liv.ac.uk |