Heat transfer rate net flux=12500W. WRONG?

jpina · March 20, 2016, 11:59

Hello,

I'm facing a VOF transient problem with the following geometry:

If at a given time step I look at the flux report I see:

Should the net flux be zero for each time step? Taking into account that I'm entering polymer at 580K and extracting air, I don't think that I should have a 0 net flux. However, I have read that the imbalances should be zero! Maybe the imbalances should be zero at a steady state calculation?

Thanks a lot.

jpina · March 21, 2016, 05:29

Somebody has the theoretical background? Should the net flux be zero at each time step of a VOF simulation?

March 20, 2016, 11:59	Heat transfer rate net flux=12500W. WRONG?	#1
jpina Senior Member Jordi Pina Join Date: Mar 2015 Posts: 157 Rep Power: 11	Hello, I'm facing a VOF transient problem with the following geometry: If at a given time step I look at the flux report I see: Should the net flux be zero for each time step? Taking into account that I'm entering polymer at 580K and extracting air, I don't think that I should have a 0 net flux. However, I have read that the imbalances should be zero! Maybe the imbalances should be zero at a steady state calculation? Thanks a lot.

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March 21, 2016, 05:29		#2
jpina Senior Member Jordi Pina Join Date: Mar 2015 Posts: 157 Rep Power: 11	Somebody has the theoretical background? Should the net flux be zero at each time step of a VOF simulation?