dynamic contact line

  • Seyed Mehdi
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6 years 8 months ago #7561 by Seyed Mehdi
dynamic contact line was created by Seyed Mehdi
Hi Joel,

I am using openFoam to see how liquid trapped within tiny gaps behave. The qoal is to see if capillary force due to surface tension can overcome the weight. the first snap shot shows liquid within the tiny gap at initial time. Second snap shopt shows the liquid moves and that some of it still gets trapped at the tip due to surface tension. The tird snap shot show how the drplet formed below the colloumn moves towards the side walls.
I used this (bekow ) condition for the wet walls and also the bath top walls:

type constantAlphaContactAngle;
theta0 33;
limit grdient;
value uniform 0;

while for all other walls I had:
type zeroGradient;

Do you think results sound right? if niot what would you suggest to change as boundary condition?

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