2 phase flow in a pipe, reference pressure

wissal · April 12, 2017, 16:31

Hello everyone

I'm simulating a 2 phase flow inside a pipe, with condensation.
A mixture of air and steam flows downward a vertical pipe with a specified inlet temperature (145°), pressure (413 kPa) and massflow. during the flow the mixture is being cooled down.

what do you guys suggest for the value of the reference pressure, knowing that the system is closed and that the gas mixture doesn't flow outside the test facility?

Thanks

ghorrocks · April 12, 2017, 18:42

It should not matter what the exact value is, so an estimate of the average pressure in the region is probably good enough.

wissal · April 13, 2017, 07:08

thanks a lot!

April 12, 2017, 16:31	2 phase flow in a pipe, reference pressure	#1
wissal New Member Join Date: May 2015 Posts: 8 Rep Power: 11	Hello everyone I'm simulating a 2 phase flow inside a pipe, with condensation. A mixture of air and steam flows downward a vertical pipe with a specified inlet temperature (145°), pressure (413 kPa) and massflow. during the flow the mixture is being cooled down. what do you guys suggest for the value of the reference pressure, knowing that the system is closed and that the gas mixture doesn't flow outside the test facility? Thanks

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April 12, 2017, 18:42		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,816 Rep Power: 144	It should not matter what the exact value is, so an estimate of the average pressure in the region is probably good enough.

April 13, 2017, 07:08		#3
wissal New Member Join Date: May 2015 Posts: 8 Rep Power: 11	thanks a lot!