1. School of Energy and Power Engineering, Beihang University, Beijing 100191, P. R. China
2. Combustion Chemistry Centre, School of Biological and Chemical Sciences, MaREI, Ryan Institute, University of Galway, Galway, Ireland
3. Key Laboratory for Power Machinery and Engineering of M. O. E, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
4. School of Astronautics, Beihang University, Beijing 100191, P. R. China