Learning Forum

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Hello,

Is there any 'built-in' or scripting solution to etract the resulting moment (taken to e.g. an axis of a reference frame, similar to structural) from surface pressures exerted on an immersed (bluff body)?

Regards,

steelxpert

[Gaurav Sharma]

steelxpert

I don't think this is possible with a pure fluid study. While extracting forces is possible, extracting moment need information of arm length which is not present in a fluid study and hence moments doesn't seem to be a possible output in a fluid study.

 However, the same can easily e extracted by performing a FSI study. The fixity provided in the structural side completes the information required for calculating moment, and can be used to extract moment reactions using calculated values.

I have performed a sample FSI study that is attached herewith and can be used as a reference. hope you find it useful.

Thanks & Regards,

Gaurav

🛈 This post originally contained file attachments which have been removed in compliance with the updated Ansys Learning Forum Terms & Conditions

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Gaurav_ANSYS ,

Thank you for your reply, it makes sense.

I ran into another problem while trying to evaluate the results in the supplied sample file - see attached error message.

Regards,

Csaba

[Gaurav Sharma]

steelxpert 

This is surprising as the archived file I shared can be accessed at my end without any issues.

The best way to access an archived model is by going to file >> Open >>browse for the wbpz file and click on "open". The popup will now prompt the user to save this model as *.wbpj. Once it is saved, you are all set to go. I hope you are following this approach?

Also, what version of Discovery AIM are you using?

Generally, such system specific issues with AIM can be resolved by:

1. Clear the contents of temp folder (type %temp% in windows Taskbar to access temp folder)

2. Close all the open Discovery Applications and go to the following appdata folder (C:Users****AppDataRoamingAnsys) and rename the folder v194 to v194.old)

Open a new session of AIM and open the archived file. Solve the model to see if the problem is still there.

Thanks & Regards,

Gaurav

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Gaurav_ANSYS

Thank you for the response.

I am an experienced ANSYS Workbench user, do always keep doing this way.

What do you mean to go to the folder specified at 2.?.. what to do then, once located?

Regards,

Csaba

[Gaurav Sharma]

steelxpert 

You just need to rename the folder v194 to v194.old, as I have done with the folder named v193 (corresponding to version 2019R1) here:

 

Now when you will open a new session of AIM, a fresh folder named v194 will automatically get created.

I hope this helps.

Thanks & Regards,

Gaurav

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Gaurav_ANSYS

Sorry, I was distrait when reading your previous instructions.

Thank you for your help.

Csaba