1. Department of Mechanical and Aerospace Engineering, Sapienza University of Rome, Rome, Italy
2. Institute for Combustion Technology, RWTH Aachen University, Aachen, Germany
3. Institute for Multiscale Thermofluids, School of Engineering, University of Edinburgh, Edinburgh, UK
4. Department of Civil and Industrial Engineering, University of Pisa, Pisa, Italy
5. Gamma Technologies, Westmont, IL, USA