[cheap_person]

Hi there!
hope you all are doing well.

Context:
I have completed cfd simulation of diffuser, I got 350m/s velocity, 3 atm pressure, 0.21kg/s mass flow rate.

Now, i am trying to apply boundary condition at the inlet chamber.

Problem:
whenever I apply these boundary conditions individually (e.g. velocity inlet or pressure inlet or mass flow rate inlet).

after completing the simulation, i never get the correct value at inlet of chamber (as mentioned in context).

Q1. how to apply velocity and pressure at once or mass flow and pressure at once?
I've tried udf but it is showing error.

Q2. i have ran almost 12 simulations for it, but i have never get 3 atm pressure within the chamber. can you tell me why is this happening, where am i wrong?

Thanking you

sending you positive vibes
cheap person✨

(Hello ghorrocks sir, if you are viewing this post. 😁&#128513

[ghorrocks]

I do not monitor this forum so did not see this post before.

You posted this question on the CFX forum as well. It is likely to be a an issue specific to your setup in CFX so this question is best discussed in the CFX forum.