Learning Forum

[peppers]

I have a geometry where there is a chamber that has an inlet and an outlet. how to know if the chamber is vacuum or not before the airflow enters through the inlet? where in ansys 2023 to find out and set it up?

thank you

[SRP]

Hi,

You need to first set the boundary condition correctly,initialize the solution by specifying initial conditions. Once the simulation is complete, you can analyze the results to determine if the chamber is a vacuum or not. Look at the pressure distribution inside the chamber. If the pressure remains close to zero or significantly lower than atmospheric pressure throughout the chamber, it indicates a vacuum condition.

Thank you.

[peppers]

Sorry I do not exactly understand. doesn't seeing after the simulation mean seeing when the airflow has entered through the inlet? while what I'm looking for is before the airflow enters the inlet so is there a vacuum in the room or not

[Rob]

I'd be surprised if a room was at vacuum pressure. What would you like there to be in the room when you start the calculation? 

[peppers]

before starting the calculation what I want is that the room is not a vacuum. however I don't know a way to find out and define it in ansys

[SRP]

Hi,

When you import CAD/Mesh in fluent, it is just a solid model nothing is there in fluent. Fluent is a platform where you create a required environment that you want to simulate. Environment is created by specific boundary condition and giving the initial conditions in fluent. Initialization is a command which helps to set the initial condition for your problem.

Hope this clears your doubt.

Thank you.