How to create a bulk source for additional variables?

HeatK · November 5, 2020, 06:58

I want to create source for an additional variable that is the whole of an inlet, rather than a speific coordnate point on it.

how can i do this within cfx pre?

Gert-Jan · November 5, 2020, 07:36

what about a subdomain?

ghorrocks · November 5, 2020, 16:37

Or you can apply a source term to a boundary patch (such as an inlet) on the "source" tab of the boundary in CFX-Pre.

HeatK · November 6, 2020, 03:33

Would it be possible to create a monitor over an boundary patch in the same fashion?

ghorrocks · November 6, 2020, 03:42

Sure is. Define a monitor point and set it to "expression". Define the expression as areaAve(p)@inlet or whatever you like.

Gert-Jan · November 6, 2020, 03:43

What do you mean by monitor? Do you want to monitor it during the calculation?
In Output Control > Monitor you can define a monitor for an expression. This could be your source, or could the an average value on a boundary. Something like areaAve(T)@Wall or massFlowAve(Pressure)@inlet, or whatsoever.

HeatK · November 6, 2020, 03:45

Yes i would like it to monitor throughout a transient analysis. How do i then get the results of the expression out in post across all timesteps?
Does this also work for additional variables?

AtoHM · November 6, 2020, 10:45

You can monitor any variable you like at appropriate locations.

The values are available in the CFX Solver Manager to plot or export as text file.

Opaque · November 6, 2020, 11:10

Quote:

Originally Posted by AtoHM

You can monitor any variable you like at appropriate locations.

The values are available in the CFX Solver Manager to plot or export as text file.

As well as in CFD-Post.. Create Chart, Type Monitor, and select the monitor data available from the SolverManager lines.

November 5, 2020, 06:58	How to create a bulk source for additional variables?	#1
HeatK New Member Charlie Heaton Join Date: Nov 2020 Posts: 5 Rep Power: 5	I want to create source for an additional variable that is the whole of an inlet, rather than a speific coordnate point on it. how can i do this within cfx pre?

November 5, 2020, 16:37		#3
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	Or you can apply a source term to a boundary patch (such as an inlet) on the "source" tab of the boundary in CFX-Pre. aero_head likes this. __________________ Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum.

November 6, 2020, 03:42		#5
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	Sure is. Define a monitor point and set it to "expression". Define the expression as areaAve(p)@inlet or whatever you like. aero_head likes this. __________________ Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum.

November 6, 2020, 10:45		#8
AtoHM Senior Member M Join Date: Dec 2017 Posts: 642 Rep Power: 12	You can monitor any variable you like at appropriate locations. The values are available in the CFX Solver Manager to plot or export as text file. Opaque likes this.

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November 5, 2020, 07:36		#2
Gert-Jan Senior Member Gert-Jan Join Date: Oct 2012 Location: Europe Posts: 1,827 Rep Power: 27	what about a subdomain?

November 6, 2020, 03:33		#4
HeatK New Member Charlie Heaton Join Date: Nov 2020 Posts: 5 Rep Power: 5	Would it be possible to create a monitor over an boundary patch in the same fashion?

November 6, 2020, 03:43		#6
Gert-Jan Senior Member Gert-Jan Join Date: Oct 2012 Location: Europe Posts: 1,827 Rep Power: 27	What do you mean by monitor? Do you want to monitor it during the calculation? In Output Control > Monitor you can define a monitor for an expression. This could be your source, or could the an average value on a boundary. Something like areaAve(T)@Wall or massFlowAve(Pressure)@inlet, or whatsoever.

November 6, 2020, 03:45		#7
HeatK New Member Charlie Heaton Join Date: Nov 2020 Posts: 5 Rep Power: 5	Yes i would like it to monitor throughout a transient analysis. How do i then get the results of the expression out in post across all timesteps? Does this also work for additional variables?