can you teach me how to add a heat source on a surface?

huanglin8545 · August 14, 2012, 04:58

I want to use flow3d to deal with the temperature distribution of an object surface.Can you tell me how to add a heat source on it ?I tried to set boundry condition by changing GUI(ie:BCDATA),but I still couldn't realize it.What should I do?Thanks.

JBurnham · August 15, 2012, 20:19

Try adding the variables POBS or SPOBS (they're the variables for the component solid, not the boundary). POBS specifies thermal energy rate for the entire object, SPOBS specifies it per unit area of surface. Only specify one, based on what you know.

huanglin8545 · August 17, 2012, 22:28

I know what you said,but how can I set parameters to definite the heat source'position coordinates by trying to input POBS or SPOBS ?Now I want to input a invariable surface heat source at a special position(x=10mm,y=5mm,z=10mm),What should I do?

huanglin8545 · September 11, 2012, 07:31

Dear JBurnham,
Thank you so much!I figured out what you said.Now I want to use fortran subroutines to realize the goal that adding a surface heat source.Could you tell me how to link my customizations and make Flow-3D to response to them?BTW,could you give me an example?Thanks

JBurnham · September 18, 2012, 13:17

The answers you seek are in the User Manual, which comes as an html document with the software.

August 14, 2012, 04:58	can you teach me how to add a heat source on a surface?	#1
huanglin8545 New Member huanglin Join Date: Feb 2012 Posts: 24 Rep Power: 14	I want to use flow3d to deal with the temperature distribution of an object surface.Can you tell me how to add a heat source on it ?I tried to set boundry condition by changing GUI(ie:BCDATA),but I still couldn't realize it.What should I do?Thanks.

August 17, 2012, 22:28	About heat source in flow3d	#3
huanglin8545 New Member huanglin Join Date: Feb 2012 Posts: 24 Rep Power: 14	I know what you said,but how can I set parameters to definite the heat source'position coordinates by trying to input POBS or SPOBS ?Now I want to input a invariable surface heat source at a special position(x=10mm,y=5mm,z=10mm),What should I do?

September 11, 2012, 07:31	flow3d fortran code	#4
huanglin8545 New Member huanglin Join Date: Feb 2012 Posts: 24 Rep Power: 14	Dear JBurnham, Thank you so much!I figured out what you said.Now I want to use fortran subroutines to realize the goal that adding a surface heat source.Could you tell me how to link my customizations and make Flow-3D to response to them?BTW,could you give me an example?Thanks

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August 15, 2012, 20:19		#2
JBurnham Senior Member Jeff Burnham Join Date: Apr 2010 Posts: 204 Rep Power: 17	Try adding the variables POBS or SPOBS (they're the variables for the component solid, not the boundary). POBS specifies thermal energy rate for the entire object, SPOBS specifies it per unit area of surface. Only specify one, based on what you know.

September 18, 2012, 13:17		#5
JBurnham Senior Member Jeff Burnham Join Date: Apr 2010 Posts: 204 Rep Power: 17	The answers you seek are in the User Manual, which comes as an html document with the software.