the macro of udf to obtain the heat flux through a wall

yanghai · March 21, 2018, 09:31

i want to obtain the heat flux that through a interface and the wall is a couple wall.so ,what's macro should been used? i can't find this in the help of fluent. Is there anybody know?and, what is the macro --BOUNDARY_HEAT_FLUX(f,t) mean????

pakk · March 21, 2018, 11:00

I have trouble to understand what you ask...

Do you want to know the heat flux through an interface or through a wall, or through a coupled wall?

But I guess that you already gave your answer, BOUNDARY_HEAT_FLUX(f,t) is most likely the macro that you need. It gives the heat flux through a boundary, just as the name implies...

yanghai · March 21, 2018, 20:24

the wall is a couple wall(there is wall and wall-shadow), i use the command --grid/modify-zones/slit-face-zone--to slit the couple wall. because it will be set as temperature and velocity inlet boundary condition. so, that macro is ok to the slit wall?

yanghai · March 22, 2018, 03:27

Quote:

Originally Posted by pakk

I have trouble to understand what you ask...

Do you want to know the heat flux through an interface or through a wall, or through a coupled wall?

But I guess that you already gave your answer, BOUNDARY_HEAT_FLUX(f,t) is most likely the macro that you need. It gives the heat flux through a boundary, just as the name implies...

the wall is a couple wall(there is wall and wall-shadow), i use the command --grid/modify-zones/slit-face-zone--to slit the couple wall. because it will be set as temperature and velocity inlet boundary condition. so, that macro is ok to the slit wall?

March 21, 2018, 09:31	the macro of udf to obtain the heat flux through a wall	#1
yanghai New Member yanghai Join Date: Mar 2018 Posts: 16 Rep Power: 8	i want to obtain the heat flux that through a interface and the wall is a couple wall.so ,what's macro should been used? i can't find this in the help of fluent. Is there anybody know?and, what is the macro --BOUNDARY_HEAT_FLUX(f,t) mean????

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March 21, 2018, 11:00		#2
pakk Senior Member Join Date: Nov 2013 Posts: 1,965 Rep Power: 26	I have trouble to understand what you ask... Do you want to know the heat flux through an interface or through a wall, or through a coupled wall? But I guess that you already gave your answer, BOUNDARY_HEAT_FLUX(f,t) is most likely the macro that you need. It gives the heat flux through a boundary, just as the name implies...

March 21, 2018, 20:24		#3
yanghai New Member yanghai Join Date: Mar 2018 Posts: 16 Rep Power: 8	the wall is a couple wall(there is wall and wall-shadow), i use the command --grid/modify-zones/slit-face-zone--to slit the couple wall. because it will be set as temperature and velocity inlet boundary condition. so, that macro is ok to the slit wall?