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2D Steady Conduction - Panel

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2D Steady Conduction - Panel

Numerical Results

Temperature

To view the temperature distribution over the surface, select Solution > Temperature from the tree on the left.
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https://confluence.cornell.edu/download/attachments/146918520/UnrefTemp_Full.PNG

Numerical ResultsImage Added

Temperature Contours

In order to view the contours as isolines, select the viewing button, and change from Contour Bands into Isolines.
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https://confluence.cornell.edu/download/attachments/146918520/Isolines.png

Total Heat Flux

We will view the heat flux as vectors. This will tell us the direction of heat flow within the geometry as well as at the boundaries  In order to plot the heat flux vectors, select Solution > Total Heat Flux from the tree on the left. Then (Click) Vectors, Image Removed near the top of the GUI. The sliders in the top bar can be used to change the size and number of vectors displayed.

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At this point, the heat flux vectors should appear similar to the image below. Take a minute to think about whether the heat flow directions at the boundaries match what you expect.

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https://confluence.cornell.edu/download/attachments/146918520/DirHeatFluxVec_Full.png

Heat Flux Variation Along Bottom Surface

We'll plot the heat flux crossing the bottom surface as a function of x. The steps involved are:

  1. Create a "path" i.e. line corresponding to the bottom surface (boundary). The path will start at (0,0) and end at (1,0).
  2. Plot the y-component of the heat flux along this path.
  3. Export heat flux values to Excel for further processing
    These steps are demonstrated in the videos below. If the videos don't appear below, try reloading the webpage.

1. Create Path Corresponding to Bottom Surface

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 <iframe width="600640" height="338360" src="https://www.youtube.com/embed/dWhIiONkR5gLZRNtWlTZH4" frameborder="0" allowfullscreen></iframe> 

Check your Understanding

Consider the following steps: 
1. Invert the stiffness matrix to determine the nodal temperature values.

2. Plot

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the temperature contours using nodal temperature values.
Steps 1 and 2 take the same amount of time.
Step 1 takes a longer time than step 2.
Step 1 takes a shorter time than step 2.

 

(To see the answer, go to the 2D Conduction section of Module 1 in

New window link
Linkhttps://courses.edx.org/courses/course-v1:CornellX+ENGR2000X+1T2017/course/
our free online course on ANSYS simulations.
You need to sign in to edX.org to access the course.)

 

Heat Flux Vectors

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 <iframe width="640" height="360" src="https:
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 <iframe width="600" height="338" src="//www.youtube.com/embed/HQbG9tcdf4g" frameborder="0" allowfullscreen></iframe> 

3. Export Data to Excel

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 <iframe width="600" height="338" src="//www.youtube.com/embed/N3gyjuSiyow" frameborder="0" allowfullscreen></iframe> 

Overall Heat Flux Crossing Boundary Surfaces

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 <iframe width="600" height="450" src="//www.youtube.com/embed/3VegA1lXq2g" frameborder="0" allowfullscreen></iframe> 

The overall heat fluxes are reported as "reactions" at boundaries in ANSYS. This terminology comes from analogy with structural mechanics and is explained in the video below.

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//www.youtube.com/embed/

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xu1SeTmhhJk" frameborder="0" allowfullscreen></iframe>

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Probe Temperature

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TRF5amR7Twc" frameborder="0" allowfullscreen></iframe>

To get the value of the temperature at a particular location within the model, we need to:

  1. Create a co-ordinate system centered at the particular location.
  2. Insert a probe that uses this co-ordinate system
    This two-step process is covered in the video below which shows how to extract the temperature at the center of the model i.e. at x=0.5, y=1.

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Temperature Along a Line

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360" src="https://www.youtube.com/embed/

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CiFeDWjfjcM" frameborder="0" allowfullscreen></iframe>

Save

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Go to Step 7: Verification & Validation

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