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Details of Grant 

EPSRC Reference: EP/I027556/1
Title: Development of scalar dissipation rate based reaction rate models for the large eddy simulations of premixed flames
Principal Investigator: Swaminathan, Professor N
Other Investigators:
Researcher Co-Investigators:
Project Partners:
Rolls-Royce Plc (UK) Siemens
Department: Engineering
Organisation: University of Cambridge
Scheme: Standard Research
Starts: 01 January 2012 Ends: 30 October 2015 Value (£): 156,288
EPSRC Research Topic Classifications:
Combustion
EPSRC Industrial Sector Classifications:
Transport Systems and Vehicles Energy
Related Grants:
EP/I028013/1
Panel History:
Panel DatePanel NameOutcome
10 Feb 2011 Process Environment & Sustainability Announced
Summary on Grant Application Form
This project aims to develop an efficient Scalar Dissipation Rate (SDR) based reaction rate closure for the Large Eddy Simulation (LES) of turbulent premixed flames. Although SDR based closures are well established for Reynolds Averaged Navier Stokes (RANS) simulations of non-premixed flames, they are rare for RANS and LES of turbulent premixed flames, and no detailed evaluation of their performance in LES is available so far. In this project, the SDR 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 LES calculations, in a configuration for which experimental data is available. Based on the simultaneous a-priori and a-posteriori analyses, new models will be developed and their performance will subsequently be assessed. The best models will then be implemented in a LES code for turbulent premixed flame modelling. An efficient SDR-based reaction rate closure will provide a robust CFD based design tool for reliable, cleaner and cost-effective combustion devices operating in lean premixed mode (e.g. Spark Ignition engines, Lean Premixed Pre-vaporised (LPP) industrial gas turbine combustors).
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Organisation Website: http://www.cam.ac.uk