Simulating Capillary Effects in Femlab (pre-new version)

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SUMMARY

Simulating capillary effects in channels using Femlab is challenging in versions prior to the latest release, which includes a wetted wall boundary condition feature. Users cannot directly replicate the new version's capabilities, such as wall adhesion and contact angle settings, in older versions. One suggested workaround involves borrowing implementation techniques from the new version and adapting them as scalar expressions for boundary conditions. However, users face limitations due to the unavailability of the new version and lack of documentation on subdomain and boundary equation systems in saved m-files.

PREREQUISITES
  • FEMLAB simulation software knowledge
  • Understanding of capillary effects in fluid dynamics
  • Familiarity with boundary condition settings in simulation environments
  • Experience with m-file scripting in MATLAB
NEXT STEPS
  • Research how to implement scalar expressions for boundary conditions in FEMLAB
  • Explore documentation on capillary effects in fluid dynamics simulations
  • Learn about the differences between FEMLAB versions, focusing on boundary condition features
  • Investigate techniques for extracting and adapting simulation data from newer software versions
USEFUL FOR

Researchers and engineers working with fluid dynamics simulations, particularly those using FEMLAB for modeling capillary effects in older software versions.

rjstr
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Is it possible to simulate capillary effects in a channel using femlab (exclude the newest version)? I mean the new version has wetted wall boundary condition setting, which can set the wall adhesion and the contact angle between the air/liquid interface and the wall. But the older version..., how...? Is there anyone who could help me? I am almost desperated...
 
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How about "borrowing the implementation" of the new version and inputting what they've there for example as a scalar expression? Then use it as a boundary condition.
 
Thank you very much for your advice, dear PerennialII. I really want to do that as you said. But the problem is that the new version is not available any more. I saved the results as m-file, but there are nothing written about the subdomain and boundary equation systems which I definitely need to input in the old version. hm...:-(
Thank you any way.
 

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