financially supported by the Natural Science Foundation of China(Grant No.51275495);the Open Research Fund of the State Key Laboratory of Fluid Power and Mechatronic Systems of Zhejiang University(Grant No.GZKF-201104);the State Key Laboratory of Ocean Engineering of Shanghai Jiao Tong University(Grant No.1105);the Key Laboratory of Technology for Safeguarding of Maritime Rights and Interests and Application(Grant No.SMZS-KCF-P2013012);the National High Technology Research and Development Program of China(863 Program,Grant No.2012AA091103);the Natural Science Foundation of Shandong Province(Grant No.ZR2011EEQ010);OUC-SRDP(Grant No.201210423081)
In the water jet propulsion system with a positive displacement (PD) pump, the nozzle, which converts pressure energy into kinetic energy, is one of the key parts exerting great influence on the reactive thrust and ...