# Solid Region - Solid - Fluid conduction

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 October 24, 2013, 04:41 Solid Region - Solid - Fluid conduction #1 New Member   Gilberto Santo Join Date: Apr 2012 Location: Gent (Belgium) Posts: 18 Rep Power: 5 Hi all, I am trying to simulate (using Fluent 12.1) a flow of hot oil flowing in a steel pipe surrounded by a solid material (just like a heat pipe). As the oil flows it warms up the solid material. Now I ask you: how can I define the solid region surrounding the pipe? How can I make Fluent simulate that solid correctly? I hope my question was clear. I wait for your answers!

October 24, 2013, 04:53
#2
New Member

Long Nguyen
Join Date: Sep 2013
Posts: 9
Rep Power: 3
Quote:
 Originally Posted by MrDaimon Hi all, I am trying to simulate (using Fluent 12.1) a flow of hot oil flowing in a steel pipe surrounded by a solid material (just like a heat pipe). As the oil flows it warms up the solid material. Now I ask you: how can I define the solid region surrounding the pipe? How can I make Fluent simulate that solid correctly? I hope my question was clear. I wait for your answers!
In my opinion, you should divide your model into 2 zones: fluid and solid. For the interfaces between these zones, you should set them as interface in boundary condition. Then, create coupled wall for these interfaces in Mesh interfaces control. After that, back into B.C and set appropriate thermal value for these intefaces.

Good luck,

Long Nguyen

 October 24, 2013, 04:59 #3 New Member   Gilberto Santo Join Date: Apr 2012 Location: Gent (Belgium) Posts: 18 Rep Power: 5 Thank you so much. Can you explain me how can I divide my model into two different regions? Do I have to do that during the meshing phase? I used Gambit for the generation of the geometry. Thanks again! Last edited by MrDaimon; October 24, 2013 at 05:25. Reason: delete

 October 24, 2013, 05:11 #4 New Member   Gilberto Santo Join Date: Apr 2012 Location: Gent (Belgium) Posts: 18 Rep Power: 5 Thank you so much. Can you explain me how can I divide my model into two different regions? Do I have to do that during the meshing phase? I used Gambit for the generation of the geometry. Thanks again!

 October 24, 2013, 05:20 Thanks #5 New Member   Gilberto Santo Join Date: Apr 2012 Location: Gent (Belgium) Posts: 18 Rep Power: 5 I want you to know that I'm trying to simulate the flux usign a 2D domain, corrisponding to a half of the section of this pipe. I used Gambit for generating the mesh. Now I ask you: do I need a multibody tool during the mesh generation? Do I have to activate multiphase model during the simulation? Thank you so much!

October 24, 2013, 11:20
#6
New Member

Long Nguyen
Join Date: Sep 2013
Posts: 9
Rep Power: 3
Quote:
 Originally Posted by MrDaimon Thank you so much. Can you explain me how can I divide my model into two different regions? Do I have to do that during the meshing phase? I used Gambit for the generation of the geometry. Thanks again!
Dear Daimon,
You can divide your model into solid and fluid regions when you create your geometric model. I usually use Design Modeler for geometry generation.

BRs,

Long Nguyen

October 24, 2013, 11:23
#7
New Member

Long Nguyen
Join Date: Sep 2013
Posts: 9
Rep Power: 3
Quote:
 Originally Posted by MrDaimon I want you to know that I'm trying to simulate the flux usign a 2D domain, corrisponding to a half of the section of this pipe. I used Gambit for generating the mesh. Now I ask you: do I need a multibody tool during the mesh generation? Do I have to activate multiphase model during the simulation? Thank you so much!

I think that activating multiphase model depends on what type of your fluid.

BRs,

Long Nguyen

 Tags fluent, heat pipe, solid fluid interaction

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