1. Center for Combustion Energy, Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Energy and Power Engineering, Tsinghua University, 100084 Beijing, China
2. State Key Laboratory of Hydro Science and Engineering, Department of Energy and Power Engineering, Tsinghua University, 100084 Beijing, China
3. Department of Engineering Mechanics, School of Aerospace Engineering, Tsinghua University, Beijing 100084, China