[evcelica]

Greetings all,
I'm doing a cool down simulation where It takes many days to cool down a geometry (295K down to 4K)
The fluids equations must be solved on a small time scale (~0.01s) where the solids can be solved on much higher timescales (100+ seconds). What I have been doing is freezing the fluids equations, then solving the energy equations @ 100+second timesteps. Using constant properties for the cool down gas. Unfortunately It seems the fluid balancing (there are 98 parallel routes) changes during the cooldown once temperatures start getting low.

So what I'm wondering is:
Can I use the domain solver control: Timescale Factor = 10000 for the solid domains during a transient simulation. The option is there, so I will test it to see what happens, and report back. Documentation seems to hint at Yes, but it is a bit unclear. CFX Pre Users Guide Section 13.4.10.1.
Would this be roughly the same as reducing the specific heat of the solid materials by a factor of 10000? Would Specific Heat reduction of the solids be an alternative option if the timescale factor does not work?
Approximate solution is fine, It should be better than my frozen fluid equations solution, which I can use for comparison.