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[n01469239]

Hello, 

 

I am running into issues with using Volume extract on Ansys space claim. 

 

I am trying to model the air on the interior of a closed chamber the boundary conditions I am trying to apply are an internal flow velocity and a heat generation. I keep running into the "Cannot create a volume body - all ends have not been capped." error. I do not understand what this means and I have tried to search this open forum for the solution but I have come to no avail.

 

The first photo is the chamber with no lid to see the face and seed face. The second photo is the full chamber. 

 

Any help or suggestions on a different approach are greatly appreciated. 

 

Matt Eells

 

 

[Keyur Kanade]

It is not clear from images. If it is completely closed chamber then you can use 'Combine' operation instead of volume extract. 

 

You can find general procedure for fluid volume extraction in following video.
https://www.youtube.com/watch?v=Jp8btI0PCyU 

 

One of the main reasons in failure is geometry errors. Please check geometry in SpaceClaim. Select geometry in structure tree --> Use right click --> Select Check Geometry. The geometry should be error free to proceed. If geometry has any errors, please modify/recreate geometry at those places.

 

Another reason is having some tangential contacts at some circular surfaces. Please make sure that bodies are intersecting instead of just touching each other.

 

Sometimes bodies are in contact only at some edges. At this point volume extraction may fail. In this case as well please make sure that bodies are intersecting each other.

 

During volume extraction some boolean operations are done in the background. If those boolean operations fail then volume extraction fails. In this case please check if you can use "Combine" command to "Merge" all solid volumes one by one. 

 

You can check following videos on fluid volume extraction. 

ANSYS Icepak: Extracting Fluid Volume of a Cold Plate - YouTube

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ANSYS Icepak: Extracting Fluid Volume of a Cold Plate This video shows how to extract fluid volume of a cold plate in ANSYS SpaceClaim. Many different modeler commands in SpaceClaim are discussed during the course of this video. In addition to the plate, the fliud volume is also created for a cylindrical channel. Watch this video to learn more www.youtube.com

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SpaceClaim Demo of The Week - Extracting Volumes for CFD, MFG or Design - YouTube

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SpaceClaim Demo of The Week - Extracting Volumes for CFD, MFG or Design Have you ever wanted to extract a solid from inside a part of assembly by filling in the empty space? Like taking a solid negative or pouring resin into a mold, but in virtual 3D. A tool capable of performing this task in mere seconds is a must for CFD, MFG fixtures and designing mating components. SpaceClaim's automated Volume Extract tool ... www.youtube.com

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You can also find some material on Ansys Learning Forum with following link. 

Introducing: Ansys SpaceClaim Tutorials - Fundamental Tools — Ansys Learning Forum

Introducing: Ansys SpaceClaim Tutorials - Fundamental Tools — Ansys Learning Forum Commercial Support Ansys customers with active commercial software licenses can access the customer portal and submit support questions. forum.ansys.com

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