[Solved] Thermal Flux trough a boundary area

Humberto · 2018-11-30 00:39:09

I am conducting a study of thermal flux through some boundary areas, but the Integrale command is not calculating the correct areas.

here is the output table I get:

Flux Energy
NOM_CHAM NUME_ORDRE INST VOL GROUP_MA INTE_FLUY INTE_FLUX MOYE_FLUY MOYE_FLUX
FLUX_NOEU 0 0.00000E+00 1.65161E-01 Outside -1.46523E+00 7.78683E-03 -8.87156E+00 4.71469E-02
FLUX_NOEU 0 0.00000E+00 1.65161E-01 Inside -1.46523E+00 7.78683E-03 -8.87156E+00 4.71469E-02
FLUX_NOEU 0 0.00000E+00 1.65161E-01 Screwt -1.46523E+00 7.78683E-03 -8.87156E+00 4.71469E-02

But the Real Areas of the surfaces as measured in the mesh module

Outside---> 0.08252335
Inside----> 0.08258048
Screwt----->5.713349e-5

So why Am I getting 1.6516 E-1 which happens to be twice the area of the Inside surface!!! Also Inside = Outside + Screwt and they are all reported with the same 1.6516E-1

Any ideas?

I am attaching the comm file.

Last edited by Humberto (2018-11-30 19:57:20)

Attachments:
RunCase_1_RunCase_1_Stage_1.comm, Size: 3.02 KiB, Downloads: 420

RichardS · 2018-11-30 09:58:01

Hi Humberto,
it seems like the INTEGRALE factor key word calculates the total value on the ensemble of the 3 assigned faces. Try to use one INTEGRALE for each single face (so three _F(..)), that should give you what you are expecting.

Best,
Richard

Humberto · 2018-11-30 19:56:56

Thanks so much! That was indeed the problem. Now I got the expected results.

#1 2018-11-30 00:39:09

[Solved] Thermal Flux trough a boundary area

#2 2018-11-30 09:58:01

Re: [Solved] Thermal Flux trough a boundary area

#3 2018-11-30 19:56:56

Re: [Solved] Thermal Flux trough a boundary area

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