[Jetflower]

Hello,
i have trouble with the conjugate heat transfer.
My analysis of a gas-turbine is time dependent. For the time step i choose manually 0.0001s and after 100 iterations (0.01s) the fluid flow converged.
But the temperatures of the solid parts change only a little bit.
Start condition: 300 K for the solid parts.

Example: The temperature of the fluid is 900 K and the temperature of the turbine-blade is only 320 K.

Problem: One iteration (0.0001s) takes about 11 minutes.
So the calculations can take "weeks" until the steady temperatures established.

How can i manage the problem of different time steps for the fluid flow and the temperature of solid parts until established ?

I can set initial conditions for the solid start temperatures but only speculative values.

For the result i need accurate temperature distributions in the solid parts.

Any ideas ?