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Deflagration to Detonation Transition with Increased Reactivity of Combustible Mixtures

Academic lead
Junfeng Yang (Mechanical Engineering)
Industrial lead
Andrzej Pekalski, Shell Global Solutions
Sven Van Loo (Physics and Astronomy), Derek Bradley (Mechanical Engineering), Samuel Falle (Mathematics)
Project themes
Reacting flows, mixing and safety

The present project aims to explore the different deflagration and detonation regimes of improved fuels and obtain an underlying mechanism of the deflagration and detonation transition. The experimental measurement on deflagration and detonation boundary will be conducted on a RCM with optical access; the direct numerical simulation will performed using in-hours MHD code with AMR feature. The key research outcome includes advanced the visualization technique and numerical tool for capturing the reactions zones and detonation waves. Both numerical and experimental work has been scheduled within 36 months.

- Months 0-3, Literature review associate with the detonation, deflagration, and combustion theory.
- Months 4-6, Perform a critical analysis of the RCM currently developed at Leeds and evaluate how it can be modified for the optical access; short term placement at Shell (Germany).
- Months 7-12, Literature review associate with DNS and CFD using MHD code; Annual Progress report; attend International conferences, e.g. ICDERS, Combustion Symposium.
- Months 13-24, Conduct the RCM experiment for the DDT regimes; analyse the images and pressure traces; detect the reaction fronts and ignition fronts; Develop DNS code and perform the CFD modelling for RCM
- Months 25-36, Validate the numerical results against the experimental data; obtain the fundamental mechanism for DDT; Wrap up the results, finalize the doctoral thesis and prepare PhD viva.

Website of Detonation Research at the Institute of Thermofluids.