Mass Conservation With only Inlet

ritwikdas18 · June 23, 2015, 07:37

I am doing a three phase simulation in fluent with velocity-inlet as air(secondary Phase). When plotting contours of volume fraction I notice that the primary phase total volume doesn't look like the same as my initial volume . I saw the mass imbalance residual and it was 10e-6 . However I am still skeptical and want to calculate whether there has been any change in total mass of my primary phase.
With Only one Inlet I can't just see the flux of inlet and outlet and check.
What do I do?

(There is no change in density)

ritwikdas18 · June 29, 2015, 02:04

I am doing a three phase simulation in fluent with velocity-inlet as air(secondary Phase). When plotting contours of volume fraction I notice that the primary phase total volume doesn't look like the same as my initial volume . I saw the mass imbalance residual and it was 10e-6 . However I am still skeptical and want to calculate whether there has been any change in total mass of my primary phase.
With Only one Inlet I can't just see the flux of inlet and outlet and check.
What do I do?

(There is no change in density)

June 23, 2015, 07:37	Mass Conservation With only Inlet	#1
ritwikdas18 New Member Ritwik Das Join Date: May 2015 Posts: 4 Rep Power: 11	I am doing a three phase simulation in fluent with velocity-inlet as air(secondary Phase). When plotting contours of volume fraction I notice that the primary phase total volume doesn't look like the same as my initial volume . I saw the mass imbalance residual and it was 10e-6 . However I am still skeptical and want to calculate whether there has been any change in total mass of my primary phase. With Only one Inlet I can't just see the flux of inlet and outlet and check. What do I do? (There is no change in density)

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Species mass flow inlet	lorenz	FLUENT	3	March 15, 2012 08:26
Net mass flow inlet vs outlet	Nigui28	FLUENT	1	August 12, 2011 11:09
lost of mass conservation	jjchristophe	FLUENT	0	June 18, 2010 06:44
Mass conservation problem in mixing tank multiphase simulation	rockewan	FLUENT	0	April 6, 2010 13:34
Mass conservation	Diego Nogueira	Main CFD Forum	1	July 30, 2004 16:50

June 29, 2015, 02:04		#2
ritwikdas18 New Member Ritwik Das Join Date: May 2015 Posts: 4 Rep Power: 11	I am doing a three phase simulation in fluent with velocity-inlet as air(secondary Phase). When plotting contours of volume fraction I notice that the primary phase total volume doesn't look like the same as my initial volume . I saw the mass imbalance residual and it was 10e-6 . However I am still skeptical and want to calculate whether there has been any change in total mass of my primary phase. With Only one Inlet I can't just see the flux of inlet and outlet and check. What do I do? (There is no change in density)