introducing pressure in a mass diffusion step

[vanos1989]

hello,

i want to introduce a pressure as a predifined fields in a mass diffusion step.

how can i do it?

thanks

 

[Compositepro]

Pressure = concentration?

 

[vanos1989]

yes i have a concentration with speed absorbed by a composite

 

[vanos1989]

can any one help me ?

 

[RPstress]

The phraseology of your question implies use of FE. Perhaps state the software and place query in an appropriate analysis forum.