How to define flow boundary inlet and outlet?

Woody27327 · November 22, 2017, 11:09

I have been coding a matlab streamfunction-vorticity program to answer the following question:

I have been using this site as a guide:

https://curiosityfluids.com/2016/03/...n-cavity-flow/

I have implemented the U1 and U2 boundary conditions from the question by modifying the lid driven cavity flow and have the following output:

How can I go about adding the flow input and output through the box? Do I need different equations to those in the link? How do I define where the outlet is without defining the velocity profile?

FMDenaro · November 22, 2017, 11:46

You have a wrong psi BC in the outlet, check it

November 22, 2017, 11:09	How to define flow boundary inlet and outlet?	#1
Woody27327 New Member Ed Join Date: Nov 2017 Posts: 2 Rep Power: 0	I have been coding a matlab streamfunction-vorticity program to answer the following question: I have been using this site as a guide: https://curiosityfluids.com/2016/03/...n-cavity-flow/ I have implemented the U1 and U2 boundary conditions from the question by modifying the lid driven cavity flow and have the following output: How can I go about adding the flow input and output through the box? Do I need different equations to those in the link? How do I define where the outlet is without defining the velocity profile?

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November 22, 2017, 11:46		#2
FMDenaro Senior Member Filippo Maria Denaro Join Date: Jul 2010 Posts: 6,897 Rep Power: 73	You have a wrong psi BC in the outlet, check it