Boundary Conditions for PISO

Mateja · January 27, 2020, 17:04

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, 12:12

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, 06:23

Thank you so much for your reply.

January 27, 2020, 17:04	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, 12:12		#2
joaran New Member Joaquín Aranciaga Join Date: Oct 2018 Posts: 21 Rep Power: 8	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 12:15. Reason: Added bibliography

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
sliding mesh problem in CFX	Saima	CFX	46	September 11, 2021 08:38
Radiation in semi-transparent media with surface-to-surface model?	mpeppels	CFX	11	August 22, 2019 08:30
Basic Nozzle-Expander Design	karmavatar	CFX	20	March 20, 2016 09:44
GETVAR Error in Multiband Monte Carlo Radiation Simulation with Directional Source	silvan	CFX	3	June 16, 2014 10:49
Question about heat transfer coefficient setting for CFX	Anna Tian	CFX	1	June 16, 2013 07:28

February 25, 2020, 06:23		#3
Mateja New Member Mateja Join Date: Jan 2020 Posts: 20 Rep Power: 6	Thank you so much for your reply.