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heat transfert and fluid flow in the welding (Level set interface tracking)
Posted 27.06.2021, 10:25 GMT-4 Computational Fluid Dynamics (CFD), Heat Transfer, Porous Media Flow 0 Replies
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Hello,
in the equations of Navier and stocks for an incompressible flow (comsol 4.2 in 3D), how to introduce the volumic force of surface tension such as is given by these equations. in this model the Level set method is used to follow the displacement of a free surface. here Φ is the Level set function
ρ ∂U/∂t+ρ(U.grad)U=∇.[-pI+µ(□∇ U+∇U^T )]+F_g+F_st+F_ext+F
F_st=∇.(σ(I-(nnT ))δ) with δ=6|∇Φ||Φ(1-Φ)|
Could anyone give me any hint about this, it would be highly appreciated.
Regards,
Hello Zhalim Halim
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