supported by National Natural Science Foundation of China (51305477);2013 Program for Innovation Team Building at Institutions of Higher Education in Chongqing(KJTD201319);Part of the work was carried out under the Collaborative Research Project of the Institute of Fluid Science,Tohoku University,Japan
Project supported by National Natural Science Foundation of China(No.51305477);Natural Science Foundation Project of CQ CSTC(CSTC,2011BB6113);Part of the work was carriedout under the Collaborative Research Project of the Institute of Fluid Science,Tohoku University,Japan