1. Key Laboratory of Hydraulic Machinery Transients, Wuhan University, Hubei Province, P.R. China
2. Ministry of Education, Wuhan, Hubei Province, P.R. China
3. School of Power and Mechanical Engineering, Wuhan University, Hubei Province, P.R. China
4. School of Civil Engineering, Hunan University of Technology, Zhuzhou, P.R. China