Irregular points in 2-D free surface flows with surface tension for the wavemaker boundary value problem

1996 ◽  
Vol 18 (6) ◽  
pp. 293-302 ◽  
Author(s):  
Sirilath J. DeSilva ◽  
Ronald B. Guenther ◽  
Robert T. Hudspeth
Keyword(s):  
Surface Tension ◽  
Free Surface ◽  
Boundary Value Problem ◽  
Boundary Value ◽  
Free Surface Flows ◽  
Surface Flows

scholarly journals Free surface flows over a successive obstacles with surface tension and gravity effects

2019 ◽  
Vol 4 (2) ◽  
pp. 316-326 ◽  
Author(s):  
Abdelkader Laiadi ◽  
◽  
Abdelkrim Merzougui ◽  
Keyword(s):  
Surface Tension ◽  
Free Surface ◽  
Free Surface Flows ◽  
Surface Flows ◽  
Gravity Effects

Finite Element Simulations of Free Surface Flows With Surface Tension in Complex Geometries

2002 ◽  
Vol 124 (3) ◽  
pp. 584-594 ◽  
Author(s):  
Gang Wang
Keyword(s):  
Surface Tension ◽  
Finite Element ◽  
Free Surface ◽  
Surface Force ◽  
Free Surface Flows ◽  
Complex Geometries ◽  
Finite Element Program ◽  
Surface Flows ◽  
Static Contact ◽  
Element Program

The finite-element program, ANSYS/FLOTRAN, has been enhanced at Release 5.7 to predict free surface flows with surface tension in complex geometries. The two-dimensional incompressible Navier-Stokes and energy equations are solved in both Cartesian and axisymmetric coordinate systems. At Release 5.6, the free surface capabilities have been incorporated into ANSYS/FLOTRAN using the CLEAR-VOF algorithm. The main contribution of this work is to implement a surface tension model into ANSYS/FLOTRAN to study free surface flows with surface tension in complex geometries. Both normal and tangential components of surface tension forces are modeled at the interface through a continuum surface force (CSF) model. This new algorithm is first validated with two model problems: a droplet in equilibrium and an oscillating droplet. For the first problem, the computed pressure value is compared with the theoretical value, whereas for the second problem, the oscillation frequency is compared with both the analytical solution and experimental data. The computer program is then applied to thermocapillary flows in two types of trapezoidal cavities to investigate the interesting flow and heat transfer characteristics. Systematic calculations are performed to study the influence of Marangoni number, capillary number and static contact angle on Marangoni convection.

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