[mariam.sara]

Hello I have a problem yet discover it recently in CFX-Pre. I have two domains for two different fluids : water which flows at the upper part of the channel (see pictures) and oil flowing at the lower part of the channel . Now when i define fluid and particles definition for domain water and select material as water i see this material found in oil domain too and when i tried change oil domain material to oil water domain will change to oil too what the problem ?

mariam

[Opaque]

This type of simulation falls in the "advanced category", and you should be careful.

Go to Edit/Options, Enable Beta Features, and Disable Constant Domain Physics.

Once you disable the "safety checks", you must carefully verify every boundary condition, model details, and consistency since the software will not do all of them for you..

It has been done, but it may take a few tries..

[mariam.sara]

I cannot find safety checks? did you mean Automatic physics update?

Originally Posted by Opaque

This type of simulation falls in the "advanced category", and you should be careful.

Go to Edit/Options, Enable Beta Features, and Disable Constant Domain Physics.

Once you disable the "safety checks", you must carefully verify every boundary condition, model details, and consistency since the software will not do all of them for you..

It has been done, but it may take a few tries..

[Opaque]

Constant Domain Physics are the "safety checks".

[mariam.sara]

Ohh I disabled both of constant domain physics and automatic physics update? is it effect the results if they both disabled because my run in progress now and do not hope to stop it?

Originally Posted by Opaque

Constant Domain Physics are the "safety checks".