Learning Forum

[nacnc]

I am simulating two-phase thermosyphon heat pipe with VOF model,Lee model, k-o sst, primary phase r134 vapor, secondary phase is r134 liquid, Others are initial settings 

I have tried both SIMPLE and PISO solution methods.  

Three sections - Evaporator, condenser and adiabatic, 

[nacnc]

If I need more information, I will add it in the discussion

[Surya Deb]

1.) For condensation, check the Saturation properties. Also keep in mind that the condensation model is not wall condensation but bulk condensation.
2.) Are you using built-in Real gas EOS or RGP files?
3.) Are you solving it in transient? If not, then try to solve it as transient as it is totally enclosed.
Regards SD

[SRICHARAN285]

hi i am also working on heat pipe.
my simulation temp in adiabatic region is more than the eveporator
anyone know the reason?