@Article{cmes.2020.07836,
AUTHOR = {Xu Liu, Xiaoyang Chen, Rongyu Kang, Xuejin Shen, Ben Ni},
TITLE = {A Coupled Cavitation Model in an Oscillatory Oil Squeeze Film},
JOURNAL = {Computer Modeling in Engineering \& Sciences},
VOLUME = {123},
YEAR = {2020},
NUMBER = {1},
PAGES = {129--152},
URL = {http://www.techscience.com/CMES/v123n1/38487},
ISSN = {1526-1506},
ABSTRACT = {In this paper, the oscillatory oil squeeze film is taken as a research object, and 
a coupled cavitation model based on the theory of bubble dynamics and hydrodynamic 
lubrication is used and a specific method of numerical calculation is given. Then the 
parallel-plate squeeze film test apparatus is used to validate the coupled cavitation model. 
The pictures of the cavitation were captured by a high-speed camera and then processed 
to obtain the variation of the cavitation area in experiments. Compared with the 
experimental results, the model can successfully predict the process of generation and 
development of cavitation. At the same time, the pressure variation calculated by the 
model is in good agreement with the experimental data and the value of negative pressure 
is close to the experiment. On this basis, three new parameters that are related to bubble 
dynamics are studied by comparing the pressure and cavitation area variation in an 
oscillating squeeze oil film. The results show that surface dilatational viscosity, initial 
radii of cavitation nuclei and number of bubbles per unit area have a significant influence 
on the generation time of the cavitation, the maximum tensile stress that the oil film can 
withstand, and the speed of the cavitation collapse respectively.},
DOI = {10.32604/cmes.2020.07836}
}