Time integration (or summing) of mass flow rate

ChesterP · July 21, 2010, 15:48

Hi all,

I have a zone with one inlet and one outlet and I would like to know how much mass has been delivered to my zone during the simulation.
My case is transient.

Thanks in advance

Chris D · July 21, 2010, 15:56

Create a mass flow rate monitor (Solve-->Monitors-->Surface).

ChesterP · July 21, 2010, 17:10

Quote:

Originally Posted by Chris D

Create a mass flow rate monitor (Solve-->Monitors-->Surface).

yes but then how do you integrate it over time to get the mass?

Chris D · July 21, 2010, 17:47

Quote:

Originally Posted by ChesterP

...how much mass has been delivered to my zone during the simulation.

Sorry, I misunderstood you before. Do you mean you want to know how much mass has entered your domain as the solution iterates, or at the end of your simulation? If you don't mind waiting until the end, you could open the mass flow rate data in a spreadsheet and use that to integrate to find the total mass.

ChesterP · July 22, 2010, 03:08

Quote:

Originally Posted by Chris D

Sorry, I misunderstood you before. Do you mean you want to know how much mass has entered your domain as the solution iterates, or at the end of your simulation? If you don't mind waiting until the end, you could open the mass flow rate data in a spreadsheet and use that to integrate to find the total mass.

Ok there isn't another way in FLUENT? Because the integration may be crude.

Thanks for your answer

Chris D · July 22, 2010, 10:14

There might be, I'm not sure. Hopefully someone else could chime in about it.

July 21, 2010, 15:48	Time integration (or summing) of mass flow rate	#1
ChesterP New Member Chester Join Date: Feb 2010 Posts: 24 Rep Power: 16	Hi all, I have a zone with one inlet and one outlet and I would like to know how much mass has been delivered to my zone during the simulation. My case is transient. Thanks in advance

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July 21, 2010, 15:56		#2
Chris D Senior Member Chris Join Date: Jul 2009 Location: Ohio, USA Posts: 169 Rep Power: 16	Create a mass flow rate monitor (Solve-->Monitors-->Surface).

July 22, 2010, 10:14		#6
Chris D Senior Member Chris Join Date: Jul 2009 Location: Ohio, USA Posts: 169 Rep Power: 16	There might be, I'm not sure. Hopefully someone else could chime in about it.