[parisa_poursani]

Hello


I am trying to regenerate a model (part of swallowing process) with Dynamic Mesh and UDF in Fluent v18. For this purpose, there is some problems in outputs (pressure vs. time at the outlet). I think there is a problem in the boundary condition definition. I want to know which boundary condition must define? my boundary conditions are:

Pressure in the inlet: from t=0 until t=0.32 with udf profile pressure change and t>0.32 -->P=0

Pressure in the outlet: from t=0 until t=0.34 -->P=0




Also, I have attached the paper's boundary conditions. I am appreciate if someone have any related comments.


Thank you

[parisa_poursani]

Originally Posted by parisa_poursani

Hello


I am trying to regenerate a model (part of swallowing process) with Dynamic Mesh and UDF in Fluent v18. For this purpose, there is some problems in outputs (pressure vs. time at the outlet). I think there is a problem in the boundary condition definition. I want to know which boundary condition must define? my boundary conditions are:

Pressure in the inlet: from t=0 until t=0.32 with udf profile pressure change and t>0.32 -->P=0

Pressure in the outlet: from t=0 until t=0.34 -->P=0




Also, I have attached the paper's boundary conditions. I am appreciate if someone have any related comments.


Thank you

Any Idea about this matter?