Boundary Condition for Closed System
 

Hi Everyone,

I do my project on Simulating biodiesel flow pattern in M-system combustion engine. Can Anyone telling me how to set my boundary condition?, because it's a closed system. There's only input and no output. What I've try is:

1. Input : velocity inlet. ---> result is dissappointing. :confused:
2. Slicing the volume and applying pressure inlet for one side, and pressure outlet for another ---> :confused: