Using Opening B.C. for both inlet and outlet

SH_P · June 9, 2012, 16:33

Hello friends,
I am going to simulate an oscillating flow in a duct with positive and negative values of velocity in both inlet and outlet.

1. Since I am new to CFX, I am not sure if it makes sense to define both inlet and outlet as Opening, one with prescribed velocity (varying with time) and one pressure?
2. I was used to work with fluent and it was no opening BC there! I will appreciate if someone describe the different between Opening and pressure outlet BC.

Thanks in advance...

ghorrocks · June 11, 2012, 21:15

This is all explained in the CFX documentation.

June 9, 2012, 16:33	Using Opening B.C. for both inlet and outlet	#1
SH_P Member Soroush Join Date: Mar 2010 Posts: 52 Rep Power: 16	Hello friends, I am going to simulate an oscillating flow in a duct with positive and negative values of velocity in both inlet and outlet. 1. Since I am new to CFX, I am not sure if it makes sense to define both inlet and outlet as Opening, one with prescribed velocity (varying with time) and one pressure? 2. I was used to work with fluent and it was no opening BC there! I will appreciate if someone describe the different between Opening and pressure outlet BC. Thanks in advance...

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June 11, 2012, 21:15		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,870 Rep Power: 144	This is all explained in the CFX documentation.