mass flow through surfaces in CFD-Post

rfavalli · August 20, 2015, 10:44

Hello.

I need to calculate the mass flow through a cilyndrical surface in CFD-Post, but I want to get only the mass flow entering into the surface, and exclude what comes out of it. IS it possible? If it is, how do I do it?

ghorrocks · August 20, 2015, 18:30

You could integrate the velocity vector with massFlowAveAbs

Or do a conditional statement on the velocity vector to only get the positive bits and integrate that.

rfavalli · August 21, 2015, 07:33

Quote:

Originally Posted by ghorrocks

You could integrate the velocity vector with massFlowAveAbs

Or do a conditional statement on the velocity vector to only get the positive bits and integrate that.

Thanks for your reply, Glenn.

Theoretically I know what I have to do, but I wish to know how to implement that on CFD-post... Is it via CEL, command line, etc...

August 20, 2015, 10:44	mass flow through surfaces in CFD-Post	#1
rfavalli New Member RCris Join Date: Aug 2015 Posts: 6 Rep Power: 10	Hello. I need to calculate the mass flow through a cilyndrical surface in CFD-Post, but I want to get only the mass flow entering into the surface, and exclude what comes out of it. IS it possible? If it is, how do I do it?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
mass flow in is not equal to mass flow out	saii	CFX	12	March 19, 2018 05:21
Pressure Outlet Targeted Mass Flow Rate	LuckyTran	FLUENT	1	November 23, 2016 10:40
static enthalpy calculation in CFD Post	newbie384	CFX	2	March 22, 2014 07:28
total mass loss/gain--simulating taylor couette flow	nwpukaka	OpenFOAM Programming & Development	0	February 12, 2014 18:57
Future CFD Research	Jas	Main CFD Forum	10	March 30, 2013 12:26

August 20, 2015, 18:30		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	You could integrate the velocity vector with massFlowAveAbs Or do a conditional statement on the velocity vector to only get the positive bits and integrate that.