A coupled level set and volume-of-fluid method for sharp interface simulation of plunging breaking waves

2009 ◽  
Vol 35 (3) ◽  
pp. 227-246 ◽  
Author(s):  
Zhaoyuan Wang ◽  
Jianming Yang ◽  
Bonguk Koo ◽  
Frederick Stern
Keyword(s):  
Level Set ◽  
Breaking Waves ◽  
Volume Of Fluid ◽  
Sharp Interface ◽  
Volume Of Fluid Method

scholarly journals Computational Study of a Vertical Plunging Jet into Still Water

Water ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 989
Author(s):  
Zegao Yin ◽  
Qianqian Jia ◽  
Yuan Li ◽  
Yanxu Wang ◽  
Dejun Yang
Keyword(s):  
Kinetic Energy ◽  
Level Set ◽  
Nozzle Exit ◽  
Computational Study ◽  
Velocity Ratio ◽  
Volume Of Fluid ◽  
Turbulence Kinetic Energy ◽  
Axial Distance ◽  
Volume Of Fluid Method ◽  
Jet Characteristics

The behavior of a vertical plunging jet was numerically investigated using the coupled Level Set and Volume of Fluid method. The computational results were in good agreement with the experimental results reported in the related literature. Vertical plunging jet characteristics, including the liquid velocity field, air void fraction, and turbulence kinetic energy, were explored by varying the distance between the nozzle exit and the still water level. It was found that the velocity at the nozzle exit plays an unimportant role in the shape and size of ascending bubbles. A modified prediction equation between the centerline velocity ratio and the axial distance ratio was developed using the data of the coupled Level Set and Volume of Fluid method, and it showed a better predicting ability than the Level Set and Mixture methods. The characteristics of turbulence kinetic energy, including its maximum value location and its radial and vertical distribution, were also compared with that of submerged jets.

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