Ansys Learning Forum Forums Discuss Simulation Fluids Residual upset for melting simulation Reply To: Residual upset for melting simulation

flo.schuster
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Ok thank you. Then I will try to implement a constant temperature with a piecewise linear density definition up to the beginning of the melting range. 

The geometry contains a vacuum regime that is modeled as air with a viscosity of 1000 (proved to increase robustness) and patched to 1 Pa pressure. Is that a valid approach?