{"id":160734,"date":"2021-07-27T14:00:00","date_gmt":"2021-07-27T14:00:00","guid":{"rendered":"\/forum\/forums\/topic\/surface-tension-as-a-source-term\/"},"modified":"2021-07-28T11:07:20","modified_gmt":"2021-07-28T11:07:20","slug":"surface-tension-as-a-source-term","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/surface-tension-as-a-source-term\/","title":{"rendered":"Surface tension as a source term"},"content":{"rendered":"
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Hello everyone. I am trying to simulate a laser welding process using VOF\/energy\/laminar flow\/melting and solidfication. <\/p>\n

I have used two phases in my simulation. One is a gas at the top and another is a aluminum solid at the bottom. <\/p>\n

Regarding the surface tension at the interface between these two phases, I want to ask that whether the surface tension as a source term is added by the fluent solver itself or we have to make UDF for that?<\/p>\n

I went through the theory guide where some description about normal component of the surface tension was given. Also, it was mentioned that tangential surface tension is also added by the fluent solver but the description was not given.<\/p>\n

Due to restriction about posting any snapshot of related fluent documentation, I am attaching an image from the research manuscript.<\/p>\n

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