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Carlos Tais (tais_c)
Junior Member
Username: tais_c

Post Number: 3
Registered: 07-2005
Posted on Saturday, August 06, 2005 - 05:54 pm:   

Hello, I need to solve a heat transfer problem in four adyacents regions that have different initial temperature.
Can I implement this in FlexPde?
Thank you very much in advance
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Mike Beanland (beanland)
Junior Member
Username: beanland

Post Number: 3
Registered: 08-2004
Posted on Saturday, August 06, 2005 - 06:04 pm:   

Absolutely. You an set the initial temperature in each region as well as the boundary conditions.
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Carlos Tais (tais_c)
Member
Username: tais_c

Post Number: 4
Registered: 07-2005
Posted on Thursday, August 11, 2005 - 10:30 am:   

Can you tell me where the statements about initial values havwe to be written?

Thanks
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Robert G. Nelson (rgnelson)
Moderator
Username: rgnelson

Post Number: 427
Registered: 06-2003
Posted on Thursday, August 11, 2005 - 05:30 pm:   

Initial values are specified, not surprisingly, in the INITIAL VALUES section.

See the Help chapter "Problem Descriptor Reference | Sections of a Descriptor | The INITIAL VALUES Section".

Or look under "Initial Values" in the Help Index.

Or look at one of the more than 80 Example files that include INITIAL VALUE specifications.
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Robert G. Nelson (rgnelson)
Moderator
Username: rgnelson

Post Number: 428
Registered: 06-2003
Posted on Thursday, August 11, 2005 - 05:35 pm:   

Looking at your previous postings, I infer that your question is really how to specify conditions that vary with region. Do this:

1) in the DEFINITIONS section, give a name to your inital value, such as TEMP0.

2) in the INITIAL VALUES section, declare the initial value:
INITIAL VALUES
Temp = Temp0

3) in the various regions of your problem, declare the values to be assigned to TEMP0:
Region 6
TEMP0=98
...
Region 7
TEMP0=99

and so forth....



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Carlos Tais (tais_c)
Member
Username: tais_c

Post Number: 5
Registered: 07-2005
Posted on Saturday, August 13, 2005 - 05:05 pm:   

Thank you very much. That is exactly what I need

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