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bugs in modeling instructions for Corrosion module in comsol v 4.3b

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Hi, everybody! I'm new.
I'm practicing an example about corrosion science, and I find some bugs in modeling instructions for Oil Platform. You can find it in PDF Document of Corrosion Module——Tutorial Models——Oil Platform on page 9:

Difference 1

Create the final geometry as the difference between the cylinders and the imported oil platform structure.

1 In the Model Builder window, right-click Geometry 1 and choose Boolean Operations>Difference.

2 In the Difference settings window, locate the Difference section.

3 Select the objects cyl1 and cyl2 only nder Objects to add.

4 Under Objects to subtract, click Activate Selection.

5 Use the Select Box toolbar button to select the imported platform geometry.

I cannot find "cyl1 and cyl2" ( No.3), "Activate Selection" (No.4) and "Select Box" (No.5) in COMSOL Multiphysics v 4.3b

so I fail to continue this modeling.
What shall I do next?
Thank you for your attention.

0 Replies Last Post 4 déc. 2013, 09:38 UTC−5
COMSOL Moderator

Hello Jeff Jiang

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