On minimum cavitation number of the ventilated supercavity in water tunnel  

作　　者：ZOU Wang YU KaiPing ARNDTREA KAWAKAMIE 

机构地区：[1]The School of Astronautics,Harbin Institute of Technology [2]Saint Anthony Falls Laboratory, University of Minnesota

出　　处：《Science China(Physics,Mechanics & Astronomy)》2013年第10期1945-1951,共7页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.10832007)

摘　　要：A numerical method consisted of the cavitation number correction and the model coefficient correction algorithms is presented to simulate the supercavity in water tunnel considering blockage and gravity effects based on the Logvinovich model.A model of the minimum cavitation number is also proposed based on the dimensional analysis theory,and the minimum cavitation number is formulated based on the model and numerical results using the nonlinear least square method(NLLS).The formula is verified by experiment to some extent.A numerical method consisted of the cavitation number correction and the model coefficient correction algorithms is presented to simulate the supercavity in water tunnel considering blockage and gravity effects based on the Logvinovich model. A model of the minimum cavitation number is also proposed based on the dimensional analysis theory, and the minimum cavitation number is formulated based on the model and numerical results using the nonlinear least square method （NLLS）. The formula is verified by experiment to some extent.

关 键 词：supercavity minimum cavitation number Froude number blockage ratio NLLS 

分 类 号：O35[理学—流体力学]