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Size of the geometry different from what is shown in the demo video

Colinda

I was following the challenge from module 2 and it seems that the geometry (*.stl) that is provided for the elbow duct is half the size of the one shown in the demo video. This becomes evident when the mesh is generated; in order to get the same mesh, I need to specify an Initial cell size = 0.004 rather than 0.008 as shown in the video.

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  • +1

    That is correct: as written in the challenge description, the initial cell size for the challenge is 0.004.

    It is also written in the challenge instructions: “use the provided geometry and values seen below to complete the challenge, as they may differ from those in the demo!”

    So, it is on purpose different from what is shown in the video. The video is merely a demo of how a case like this is done. If the challenge would be with the exact same settings, it would just be copying the steps of the video. For good learning the lessons learned need to be applied to a slightly different case. In that way you are more likely to remember.

    In addition a demo with the exact same settings would allow to get answers to the quiz questions from the demo video without running the simulation.

Reply
  • +1

    That is correct: as written in the challenge description, the initial cell size for the challenge is 0.004.

    It is also written in the challenge instructions: “use the provided geometry and values seen below to complete the challenge, as they may differ from those in the demo!”

    So, it is on purpose different from what is shown in the video. The video is merely a demo of how a case like this is done. If the challenge would be with the exact same settings, it would just be copying the steps of the video. For good learning the lessons learned need to be applied to a slightly different case. In that way you are more likely to remember.

    In addition a demo with the exact same settings would allow to get answers to the quiz questions from the demo video without running the simulation.

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