November 1, 2022 at 11:51 amMarco AlborghettiSubscriber
I'm dealing with a multiphase problem in which i want to set a phase transition study from a liquid to a gas.
I'm trying to set the real gas model, I'll use the peng-Robinson model to perform the properties of both gas and liquid phase, but i cannot import the properties (density... ecc) i've calculated in function of a temperature and a drop pressure,
Anyone know how to do it?
Thank you for your time,
November 1, 2022 at 2:08 pmRobAnsys Employee
Peng-Robinson is one of the standard options, or are you trying to use a UDF for the real gas properties?
November 2, 2022 at 9:21 amMarco AlborghettiSubscriber
Well I was trying to use peng-robinson and provide a table to the software in order to see which data it has to follow for density in function of pressure and temperature. Than I tried to use another kind of methodology by implementing a RGP file, in your opinion which is the best solution to solve the problem?
November 2, 2022 at 10:13 amRobAnsys Employee
I tend to avoid real gas models where possible. If you create the two materials and then turn on multiphase how does it behave? You'll still need to fix the interphase mass & heat transfer via the models or a UDF.
November 2, 2022 at 10:15 amMarco AlborghettiSubscriber
it doesn't behave good mainly because the property change of both liquid and gas during the process, infact i'm dealing with a liquid that become supercritical
- You must be logged in to reply to this topic.
Simulation World 2022
Earth Rescue – An Ansys Online Series
- Suppress Fluent to open with GUI while performing in journal file
- Heat transfer coefficient
- What are the differences between CFX and Fluent?
- Floating point exception in Fluent
- The solver failed with a non-zero exit code of : 2
- Getting graph and tabular data from result in workbench mechanical
- Difference between K-epsilon and K-omega Turbulence Model
- Time Step Size and Courant Number
- Mesh Interfaces in ANSYS FLUENT
- error in cfd post
© 2022 Copyright ANSYS, Inc. All rights reserved.