[openAC]

Hi,

I have a complex nozzle geometry with internal flow. As I try to use volume extract in Ansys SpaceClaim 18.1 for extracting the fluid domain, I do obtain a fluid volume. However, the volume extracted has poor quality surfaces for some reason. The original geometry has much smoother surfaces for the same component.

Has anyone else faced something similar? Is there a precision or a tolerance setting I need to use before volume extraction?

[Rajaero]

hi,
can you post a picture ?
thanks...

[openAC]

Sure.



See image-1 for a test surface that is on the actual solid structure.


Image-2 shows the surface on the extracted volume corresponding to the above surface.



The actual solid looks smooth and the extracted solid looks faceted like in image-2.


Interestingly, if I take this surface from my extracted volume and either "detach" it or paste it to a fresh design window, it looks smooth again.


I feel like there is something really basic I am missing. This is my first time using SpaceClaim.

[Rajaero]

Hi,
1. I think you are trying to extract fluid volume from surface body.
2. Make the nozzle surface to solid by giving some thickness.
3. Then try to extract the fluid volume

Thanks...

[openAC]

@Rajaero - I am using the full solid for volume extraction. I have just shown the surfaces in the above images to avoid distraction. Thank you.

[Rajaero]

Hi,
i see, then i am not sure what is wrong in your case. Bcz volume extract is very easy in space claim. try to see some tutorial about volume extract in you tube.

[mahir]

Originally Posted by Rajaero

Hi,
i see, then i am not sure what is wrong in your case. Bcz volume extract is very easy in space claim. try to see some tutorial about volume extract in you tube.

hello i have a problem with volume extract in spaceclaim pls help. when i choose suraface and command it volume extr. it just extract one part of the geo. what a problem could be possible pls help

when you reply i will share more details ...