Boundary Conditions for PISO

Mateja · January 27, 2020, 16:04

Hey y'all
I want to solve Lid Driven Cavity problem with PISO algorithm. My main concern right now is how to set boundary conditions for the Lid Driven Cavity in this case.For velocity, the non-slip BC would be applied for the velocity but what would be the BCs for pressure and Poisson's Equation? I couldn't find any literature where PISO is implemented to lid driven cavity problem. Can someone please guide or refer any literature for this topis?
Thanks in advance

joaran · February 4, 2020, 11:12

Hey Mateja,
For the pressure equation you can use a zero gradient boundary condition. It doesn't matter if it's PISO or SIMPLE algorithm. For further info, check the following book: https://www.springer.com/gp/book/9783319168739

Regards,
Joaquin

Mateja · February 25, 2020, 05:23

Thank you so much for your reply.

January 27, 2020, 16:04	Boundary Conditions for PISO	#1
Mateja New Member Mateja Join Date: Jan 2020 Posts: 20 Rep Power: 6	Hey y'all I want to solve Lid Driven Cavity problem with PISO algorithm. My main concern right now is how to set boundary conditions for the Lid Driven Cavity in this case.For velocity, the non-slip BC would be applied for the velocity but what would be the BCs for pressure and Poisson's Equation? I couldn't find any literature where PISO is implemented to lid driven cavity problem. Can someone please guide or refer any literature for this topis? Thanks in advance

February 4, 2020, 11:12		#2
joaran New Member Joaquín Aranciaga Join Date: Oct 2018 Posts: 21 Rep Power: 7	Hey Mateja, For the pressure equation you can use a zero gradient boundary condition. It doesn't matter if it's PISO or SIMPLE algorithm. For further info, check the following book: https://www.springer.com/gp/book/9783319168739 Regards, Joaquin Mateja likes this. Last edited by joaran; February 4, 2020 at 11:15. Reason: Added bibliography

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February 25, 2020, 05:23		#3
Mateja New Member Mateja Join Date: Jan 2020 Posts: 20 Rep Power: 6	Thank you so much for your reply.