1. Department of Nuclear Science and Technology, College of Science, National University of Defense Technology 1 , Changsha 410073, China
2. Key Laboratory of Advanced Science and Technology on High Power Microwave, Northwest Institute of Nuclear Technology 2 , Xi'an 710024, China
3. College of Mechanical and Electrical Engineering, Nanjing Forestry University 3 , Nanjing 210037, China
4. Key Laboratory of Thermo-Fluid Science & Engineering (Xi'an Jiaotong University), Ministry of Education 4 , Xi'an, Shannxi 710049, China