[efsolat]

Hi every body,
I have some basic questions about Baffles. It would be of great appreciation if somebody can provide some descriptions.
In the case i am modeling, a fluid in a porous walled tube is flowing with a fixed axial velocity and leaks from the wall into another porous media. I defined porous baffle for tube wall using createBaffles utility and used cyclic and porousBafflePressure boundary conditions respectively for U and p of the baffle. The problem is that i do not know how to define pressure jump in porousBafflePressure although i know the value of the pressure jump. while using createBaffles two patches are produced (master and slave) but i am not able to find any information about the way they are used in boundary conditions (pressure jump for my case)
To short the story, my questions are:
- what are the role of master and slave patches in a baffle?
- How is the pressure jump defined in a porous baffle as the direction of pressure drop is known (should it be the same for master and slave patches)?


Best regards,
Efsolat

[efsolat]

Any information and/or reference would be helpful.


Regards