[bablubadmosh]

Hello Guys,

I am very new to ansys and fluid flow simulation, I am using ansys student version, I want to simulate two phase in a heat sink base with some channels having water as fluid in them.

My problem is when I use transient the time steps are too small like 0.005 or less, else my simulation show high courant number error, when I use steady state simulation my temprature keeps on rising and does not stablize.

I do not know why, I am using VOF model, 3 phases ( Air, Water, Steam)
I want my water to evaporate at 60 degrees celcius, I do not know where to put ambient temperature but I have put 50 degrees celsius in ceel zone conditiona nd at initialization.

It would be great if somebody would help me out