1. School of Food Equipment Engineering and Science Xi'an Jiaotong University Xi'an Shaanxi P. R. China
2. School of Mechanical Engineering Xi'an Jiaotong University Xi'an Shaanxi P. R. China
3. State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an Shaanxi P. R. China
4. Department of Mechanical Engineering University of Akron Akron OH USA