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- - **Thermocapillar convection**
(*https://www.cfd-online.com/Forums/openfoam-solving/59837-thermocapillar-convection.html*)

Hi,
I would like to implemeHi,
I would like to implement a boundary condition for thermocapillary convection. Pardon my ignorance - but I am wondering if (what..) difference it would make if I consider it a momentum source somehow like S=dT/dz*dG/dT*A/V with T=Temperature, z =coordinate parallel to surface, A=area of a surface element, dG/dT dependency of surface tension on temperature, and V = Volume of the volume cell adjacent to the surface element or as a fixed gradient condition: mu* dU/dn=dG/dT*dT/dz mu=viscosity, dU/dn velocity gradient perpendicular to surface Thank you very much for any hint ! |

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