UK Consortium on Turbulent Reacting Flows (UKCTRF)

Lead Research Organisation: Durham University
Department Name: Engineering

Abstract

The proposed UK Consortium on Turbulent Reacting Flows will perform high-fidelity computational simulations (i.e. Reynolds Averaged Navier-Stokes simulations (RANS), Large Eddy Simulation (LES) and Direct Numerical Simulations (DNS)) by utilising national High Performance Computing (HPC) resources to address the challenges related to energy through the fundamental physical understanding and modelling of turbulent reacting flows. Engineering applications range from the formulation of reliable fire-safety measures to the design of energy-efficient and environmentally-friendly internal combustion engines and gas turbines. The consortium will serve as a platform to collaborate and share HPC expertise within the research community and to help UK computational reacting flow research to remain internationally competitive. The proposed research of the consortium is divided into a number of broad work packages, which will be continued throughout the duration of the consortium and which will be reinforced by other Research Council and industrial grants secured by the consortium members. The consortium will also support both externally funded (e.g. EU and industrial) and internal (e.g. university PhD) projects, which do not have dedicated HPC support of their own.
The consortium will not only have huge intellectual impact in terms of fundamental physical understanding and modelling of turbulent reacting flows, but will also have considerable long-term societal impact in terms of energy efficiency and environmental friendliness. Moreover, the cutting edge computational tools developed by the consortium will aid UK based manufacturers (e.g. Rolls Royce and Siemens) to design safe, reliable, energy-efficient and environmentally-friendly combustion devices to exploit the expanding world-wide energy market and boost the UK economy. Last but not least, the proposed collaborative research lays great importance on the development of highly-skilled man-power in the form of Research Associates (RAs) and PhD students of the consortium members, who in turn are expected to contribute positively to the UK economy and UK reacting flow research for many years to come.
 
Description Good progress has been made in generating new global correlations to predict the lift-off hight and blow-off characteristics of turbulent jet flames, flares and fires. These include methane and propane subsonic vertical jet-flames, both with and without diluent air. In addition, collaborative work with third parties has lead to the gathering of vital and new experimental data for the validation of computational predictions based on solution of the RANS equations for the above problems, in particular when such events are subjected to a cross flow. Important numerical predictions have been obtained with respect to modelling the effect of ambient turbulence on pressure swirl spray characteristics associated with engine combustion and efficiency, and compared with complementary experimental results.
Exploitation Route The correlations that have been formulated will be of considerable interest to oil and gas companies worldwide and any organisations concerned with health and safety issues apropos fire and explosion hazards. The computational studies undertaken are also of direct relevance to fracking and emissions/pollutants arising from flaring. As to the modelling of the interaction between ambient turbulence and sprays, this will be of particular interest to worldwide petrol and diesel engine manufacturers apropos efficiency and pollutant mitigation.
Sectors Energy,Environment,Manufacturing, including Industrial Biotechology,Transport,Other

 
Description They have been reported orally at academic meetings, annual consortium review meetings, workshops and international conferences.
Sector Energy,Environment,Other
Impact Types Societal

 
Description Jet flames: experimental 
Organisation University of Science and Technology of China USTC
Country China 
Sector Academic/University 
PI Contribution Design of experiments and related visits to China
Collaborator Contribution Access to late scale experimental facilities and technical staff support; gathering of vital data for validation of computational data.
Impact A Palacios, D Bradley, L Hu, Lift-off and blow-off of methane and propane subsonic vertical jet flames, with and without diluent air, Fuel, 183, pp414-419 (2016)
Start Year 2015
 
Description Jet flames: modelling 
Organisation University of the Americas
Country Mexico 
Sector Academic/University 
PI Contribution Modelling together with design of experiments and interoperation of experimental data for validation purposes.
Collaborator Contribution Visits to China to carry out experiments and collect validation data.
Impact A Palacios, D Bradley, L Hu, Lift-off and blow-off methane and propane subsonic vertical jet flames, with and without diluent air, Fuel, 183, pp414-419 (2016) A Palacios, D Bradley, M Lawes, Blow-off velocities of jet flames, Proceedings 8th International Seminar on Fire and Explosions - in press
Start Year 2014