Issues importing obj-file using Surface Wrap

[Anonymous]

Hi!

I am having issues when importing my models made in Autodesk Infraworks 360. As Autodesk CFD does not support the file types exported by Infraworks 360 (obj. , dae or fbx.) I am trying to use Surface Wrap as I thought is the solution. However, even though Surface Wrap detects my model, it does import the file at all. No error message or anything pops up after the message on the image below.

Possible reasons for the problem: The file is quite big, just under 1 Gb. I am running Autodesk CFD on a windows-partition on an iMac.

Any suggestions for solving my problem of importing a obj. file to Autodesk CFD?

 

[Jon.Wilde]

Might you share an image of what the file looks like? 

Are you OK to run external aero only on this? As per any surface wrap model?

[Anonymous]

Hi, thanks for replying!

Yes, it is a relatively big model made in InfraWorks 360 covering an area of about 200 km^2 and file size about 2 GB. If the size is a problem I could make it  smaller both in file size and covered area. One of your videos on youtube says that the 2017 version of CFD finally is able to import obj-files, so it may mean that the 2016 version doesn't.

[Anonymous]

Hi, thanks for replying!

Yes, it is a relatively big model made in InfraWorks 360 covering an area of about 200 km^2 and file size about 2 GB. If the size is a problem I could make it  smaller both in file size and covered area. One of your videos on youtube says that the 2017 version of CFD finally is able to import obj-files, so it may mean that the 2016 version doesn't.

[Anonymous]

Hi, thanks for replying!

Yes, it is a relatively big model made in InfraWorks 360 covering an area of about 200 km^2 and file size about 2 GB. If the size is a problem I could make it  smaller both in file size and covered area. One of your videos on youtube says that the 2017 version of CFD finally is able to import obj-files, so it may mean that the 2016 version doesn't.

[Jon.Wilde · Accepted solution]

Thanks for sharing 🙂

This is a big file for us I would say, depending on the product. For CFD, its big.

How about leveraging meshmixer to try to both simplify it and make it into a solid for use in CFD?

Another really important question - what is your goal here with CFD? What are you planning to run?

Thanks,

Jon

[Mike.Grau · Accepted solution]

Hi @Anonymous,

Thank you for your post in the Forum.

Yes, @Jon.Wilde absolutely right, Meshmixer would do the job.

You can try to follow the workflow in the tutorial here

We could also import your file into the Fusion 360 mesh environment and remodel it directly.

It would be great if you could share a "Public Link" of your design via Private Message.

I hope this helps.

Thanks,

[Anonymous]

Thank you for your advice and sorry for spamming! I will try out Meshmixer straight away. My goal is to simulate the wind behavior to optimize the location of a 50 kW wind turbine we are planning to install this summer. I am using Flow Design, but it does not provide the option for a vertical speed profile.

[Anonymous]

Hi, @Jon.Wild. You guys certainly makes an effort helping me, thank you!  I will try the tutorial you mentioned, and if I am still having issues I will send you a private message.  Have a great day!