how to model the heat transfer of pipe located in the soil

reza67 · October 17, 2014, 06:15

hi everyone
i want to modelling a pipe which is located in the soil
there is the water in the pipe and heat transfer from the soil to the water
so there is 2 conduction which is happen in the soil and pipe ( or maby 3 because another material would be using between the soil and pipe) and a convection in the water

can anyone help me to do this ?

thanks

reza67 · October 18, 2014, 10:36

doesn't anybody here to help me

ghost82 · October 18, 2014, 11:23

Nobody can help you unless you ask some specific questions.
Reply to your question should be something similar to this (#21):

http://www.cfd-online.com/Forums/flu...tml#post514255

reza67 · October 18, 2014, 12:15

sorry ghost82

the pipe is in the borehole and the heat transfer through the soil and pipe to the water
my question is how to coupled the conduction of soil and pipe with the convection of water?

ghost82 · October 18, 2014, 15:14

If you model the solid soil and the water flowing in the pipe both conduction and convection are automatically taken into account. You have to couple wall and shadow-wall of the pipe-soil.
What are your boundary conditions?

reza67 · October 19, 2014, 14:33

Quote:

Originally Posted by ghost82

If you model the solid soil and the water flowing in the pipe both conduction and convection are automatically taken into account. You have to couple wall and shadow-wall of the pipe-soil.
What are your boundary conditions?

thanks ghost82

i think i made mistake in boundry condition and the problem was eliminated now

October 17, 2014, 06:15	how to model the heat transfer of pipe located in the soil	#1
reza67 Member Join Date: May 2014 Posts: 31 Rep Power: 11	hi everyone i want to modelling a pipe which is located in the soil there is the water in the pipe and heat transfer from the soil to the water so there is 2 conduction which is happen in the soil and pipe ( or maby 3 because another material would be using between the soil and pipe) and a convection in the water can anyone help me to do this ? thanks

October 18, 2014, 15:14		#5
ghost82 Senior Member Rick Join Date: Oct 2010 Posts: 1,016 Rep Power: 26	If you model the solid soil and the water flowing in the pipe both conduction and convection are automatically taken into account. You have to couple wall and shadow-wall of the pipe-soil. What are your boundary conditions? __________________ Google is your friend and the same for the search button!

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October 18, 2014, 10:36		#2
reza67 Member Join Date: May 2014 Posts: 31 Rep Power: 11	doesn't anybody here to help me

October 18, 2014, 11:23		#3
ghost82 Senior Member Rick Join Date: Oct 2010 Posts: 1,016 Rep Power: 26	Nobody can help you unless you ask some specific questions. Reply to your question should be something similar to this (#21): http://www.cfd-online.com/Forums/flu...tml#post514255

October 18, 2014, 12:15		#4
reza67 Member Join Date: May 2014 Posts: 31 Rep Power: 11	sorry ghost82 the pipe is in the borehole and the heat transfer through the soil and pipe to the water my question is how to coupled the conduction of soil and pipe with the convection of water?