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Old   March 18, 2013, 14:39
Default need help to solve "error"
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how to solve this error?

WARNING: Unassigned interface zone detected for interface 10
Unassigned interface zones found. Flow is not initialized.
Interrupting...
Done.
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Old   March 18, 2013, 20:47
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define / mesh-interface / create or equivalent operations in GUI
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Old   March 18, 2013, 21:22
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thank you for reply,

I did, but there is a problem, because, I defined bound between solid and air and its only one bound while the error happens regarding to "create edit mesh interface" zone 1 and zone 2 but I have only one zone defined. how to create another zone?
where is my mistake?

Error: Zone boundairsolid1 selected in both left and right interface lists
Error Object: #f

Interrupting...
Done.


regards
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Old   March 19, 2013, 02:23
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If this is the surface separating fluid and solid, then you should change its type to wall.
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Old   March 19, 2013, 05:36
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Indeed, this are connected from one side. So, I should define interface instead of wall am I right?
when we should really use interface?

regards,
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Old   March 19, 2013, 07:18
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Yes, you need to define interface between two zones. You can do it in Define>Mesh Interfaces.
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Old   March 19, 2013, 07:32
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but my problem is how is it possible to have two zone ? when I open mesh interface there is appear only one zone which its bound between two zones..
can't understand my mistake
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Old   March 19, 2013, 09:16
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can you post picture of your mesh and model?
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Old   March 19, 2013, 09:52
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Which software did you use to create mesh? Whatever it is, did you create any boundary condition with a name that has word "interface" in it? If yes, FLUENT gets confused and considers it as interface, though it is not intended to be.
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Old   March 19, 2013, 10:06
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I didn't name with "interface" at all in mesh file. (ICEM)

I attached my 2D model. let hear your opinions...
regards,
Attached Images
File Type: jpg Capture.JPG (40.5 KB, 27 views)
File Type: jpg mesh.JPG (53.4 KB, 22 views)
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Old   March 20, 2013, 03:23
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The answer lie within your own comment. In order to have an interface you must have two domains. When you create two domains in contact with each other, the meshing software either ICEM or Ansys-Meshing should automatically generate the interface.

Tip: In ICEM or Ansys-Meshing you can right click the 'Mesh Connections' option and select 'Create Automatic Connections' to generate interface.

Next, When you import your mesh in Fluent you will see that the 'Mesh Interface' option is automatically activated. You need not do anything unless you observe that your flow is not behaving properly.
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Old   March 20, 2013, 11:05
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Thank you for your answer,

I did. but now, when I open mesh into the FLUENT the below warning appear at the begin: what can I do to solve the problem?

Warning: Flow boundary zone 8 is adjacent to a solid
zone (4). This problem MUST be fixed before
solution can proceed!
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Old   March 21, 2013, 03:26
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Comment Deleted

Last edited by vasava; March 21, 2013 at 10:49.
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Old   March 21, 2013, 08:58
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thank you for your answer all,

but already its correct and I have this error even defined fluid and solid in "cell zone condition". still have a warning...

I followed like this suggestion by m2montazari
Heat transfer between fluid-solid domains doesn't occur
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Old   March 21, 2013, 10:48
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My previous answer was wrong. Sorry about that. I forgot that you have air and solid. Here is the correct answer.

When you want to simulate conjugate heat transfer you must activate ‘coupling ’ in the ‘define interface’ section. By default this option is not activated. So you must delete the current interface first and then create a new interface and select coupled.
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Old   March 21, 2013, 10:53
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thank you Vasava,

now its okay. without "warning".

another question may not belong to this part, however, its my problem.

how to input a Time-Temperature file regarding to do transient analysis ?

Is there any procedure?

I already done into ANSYS apdl but in FLUENT I dont know how...

regards,
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Old   March 21, 2013, 12:37
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Do you mean time dependent temperature profile as boundary condition?
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Old   March 21, 2013, 12:39
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exactly!,

I have time- temperature profile which should be imposed to the model.. now I cant find the import such a file in FLUENT ...

thank you for your attention ,
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Old   March 21, 2013, 15:32
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I think you can make UDF with DEFINE_PROFILE macro.
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