[hornig]

Hi,

I would like to ask you again.

I want to generate fluid velocity just by temperature difference of the fluid and a warmer wall on the ground.

I have the Fluent 4.5 Update Manual and tried to replicate the tutorial "boiling water in a container" but "unfortunally" I have fluent 6.3.26 on this pool pc and somehow the optioned changed significantly, so that I don't know how to do this by myself.

My aim is to combine my current work with a velocity input v>0 and with a wall inside inducing additional velocity just by its heat. I tried to do this by trial-and-error, but this was not successfull and causing errors.
I tried "define-modles-energy" and set another temperature under "Boundy Conditions - wall - termal" but this wasn't helpfull.

Could you please give me a hint, or something usefull?

Thank you in advance, Andreas