| EPSRC Reference: |
EP/G009783/1 |
| Title: |
Development of Unified Flame Surface Density Based Reaction Rate Models for the LES of Turbulent Premixed Flames |
| Principal Investigator: |
Kempf, Dr A |
| Other Investigators: |
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| Project Partners: |
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| Department: |
Mechanical Engineering |
| Organisation: |
Imperial College London |
| Scheme: |
Standard Research |
| Starts: |
01 July 2009 |
Ends: |
31 December 2012 |
Value (£): |
129,149
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| Related Grants: |
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| Panel History: |
| Panel Date | Panel Name | Outcome |
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19 Jun 2008
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Engineering Science (Flow) Panel
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Announced
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Summary on Grant Application Form |
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We aim to develop an efficient Flame Surface Density (FSD) based reaction rate closure for the Large Eddy Simulation (LES) of turbulent premixed flames. Although FSD closures are well established for Reynolds Averaged Navier Stokes (RANS) simulations, they are relatively rare for LES, and no detailed evaluation of their performance is available so far. In this project, FSD based reaction rate closures will be developed and simultaneously assessed by a-priori analyses of explicitly filtered Direct Numerical Simulation (DNS) data, and a-posteriori evaluations of model performances in actual LES results, in a configuration for which experimental data is available. Based on the simultaneous a-priori and a-posteriori analyses, new unified models will be developed and their performance will then be assessed by the same analysis as carried out for the existing models. The model implementation will then be generalised in such a format that they can be used as an add-on to any commercial or inhouse general purpose code involving complex geometrical configurations. The new subroutines where this will be implemented will be made freely available to interested national and international colleagues. An efficient FSD-based reaction rate closure will provide a reliable CFD based design tool for reliable, cleaner and cost-effective combustion devices where combustion takes place in premixed mode (e.g. Spark Ignition engines, Lean Premixed Pre-vaporised (LPP) and industrial gas turbine combustors.)
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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.imperial.ac.uk |