{"id":163415,"date":"2021-10-26T18:06:45","date_gmt":"2021-10-26T18:06:45","guid":{"rendered":"\/forum\/forums\/topic\/calculation-on-phase-interface-using-vof\/"},"modified":"2021-10-28T16:03:06","modified_gmt":"2021-10-28T16:03:06","slug":"calculation-on-phase-interface-using-vof","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/calculation-on-phase-interface-using-vof\/","title":{"rendered":"Calculation on Phase Interface using VOF"},"content":{"rendered":"
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Thanks in advance for your interest. <\/p>\n

I'm designing for a molten pool model for TIG welding process via VOF. My application requires applying heat flux and momentum on the phase interface between air and workpiece. I found that there is heat, force, mass transfer function in VOF(on the interface tab), however, it seems that it only allows user-defined function for transfer coefficient instead of heat flux. Is there any way to define a heat source or a momentum source at the phase interface? I attached a sketch for my geometry. <\/p>\n

If I hook up a define-profile UDF on the top surface of my workpiece (IJKL), will fluent considers this wall as a free surface? To be more specific, there will be a curvature when the workpiece (Designated as Steel) got heated up and melted. Will the IJKL wall catch the curvature and change its shape in this case? In another world, will the interface IJKL behave the same as phase interface or just remain as a solid wall during the calculation? <\/p>\n

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Many thanks! <\/p>\n

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