A Second Order Accuracy Preserving Method for Moving Contact Lines with Stokes Flow

2021 ◽  
pp. 110607
Author(s):  
Shuqing Chai ◽  
Zhen Zhang ◽  
Zhiwen Zhang
Keyword(s):  
Stokes Flow ◽  
Second Order ◽  
Contact Lines ◽  
Order Accuracy ◽  
Moving Contact ◽  
Moving Contact Lines

scholarly journals Applying Contact Angle to a Two-Dimensional Multiphase Smoothed Particle Hydrodynamics Model

2015 ◽  
Vol 137 (4) ◽  
Author(s):  
Amirsaman Farrokhpanah ◽  
Babak Samareh ◽  
Javad Mostaghimi
Keyword(s):  
Contact Angle ◽  
Triple Point ◽  
Smoothed Particle Hydrodynamics ◽  
Equilibrium Contact Angle ◽  
Shear Stresses ◽  
Contact Lines ◽  
Moving Contact ◽  
Moving Contact Lines ◽  
Particle Hydrodynamics ◽  
Smoothed Particle

Equilibrium contact angle of liquid drops over horizontal surfaces has been modeled using smoothed particle hydrodynamics (SPH). The model is capable of accurate implementation of contact angles to stationary and moving contact lines. In this scheme, the desired value for stationary or dynamic contact angle is used to correct the profile near the triple point. This is achieved by correcting the surface normals near the contact line and also interpolating the drop profile into the boundaries. Simulations show that a close match to the chosen contact angle values can be achieved for both stationary and moving contact lines. This technique has proven to reduce the amount of nonphysical shear stresses near the triple point and to enhance the convergence characteristics of the solver.

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