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A
AAI10-Marble
10-Marble
October 19, 2018
Question

Flow analys postprocessing temperatures mismatch

  • October 19, 2018
  • 1 reply
  • 5088 views

I have a mismatch in temperatures during the postprocessing of a flow analysis problem coupled with conjugate heat transfer. My problem has a cylindrical shape, with almost axial symmetry. To visualize the temperatures, I have made two cuts along X and Y planes. I also want to know the temperature in the inner part of the vessel, which is a cylinder. I expected to see exactly the same temperatures on the intersection region of the cylinder with the two planes, but this is not the case. This issue may be due to the high temperature gradient in the direction normal to the cylinder, but I am not sure.  

The pictures below illustrate the problem. 

Help please.

Axial view of planes X Y and the cylinderAxial view of planes X Y and the cylinderArea affected by temperatures mismatchArea affected by temperatures mismatchDetail of temperatures mismatchDetail of temperatures mismatch

1 reply

C
cfdgeek13-Aquamarine
13-Aquamarine
October 19, 2018

Hello AAI,

 

Can you double check the range of temperature for those surfaces are the same? Thanks.

 

 

A
AAI10-MarbleAuthor
10-Marble
October 22, 2018

I confirm that the range of temperatures is the same for the three surfaces. I am showing temperatures in the range 300-310 K. However, my problem has temperatures as high as 1200 K with a high gradient near the surface of the cylinder. 

Thanks

C
cfdgeek13-Aquamarine
13-Aquamarine
October 23, 2018

temperature depends on the heat source. Could you share the model? thanks. 

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