[ANSYS Meshing] Hollow hemisphere: Why not sweepable?

siw · February 21, 2013, 12:00

Hi,

Can anyone tell me why ANSYS Meshing does not think a hollow hemisphere (see image) is a sweepable body. I would have thought it could be swept from internal to external spherical surfaces but it will not.

Thanks.

mjgraf · February 21, 2013, 14:08

a revolve sweep or extrude by rotation would work, i think. Not sure what would happen at the 0-360 interface, if it would merge those nodes/faces.

Quote:

Originally Posted by siw

Hi,

Can anyone tell me why ANSYS Meshing does not think a hollow hemisphere (see image) is not a sweepable body. I would have thought it could be swept from internal to external spherical surfaces but it will not.

Thanks.

siw · February 21, 2013, 16:26

mjgraf, are you referring to DesignModeler commands? Because as you can see I have made the geometry in DM (by two spheres using a smaller one to slice out the material from the larger one and then a slice by place to cut it in half). The mesh in the image is with MultiZone.

I'm simply asking about why this is not a sweepable body in Meshing.

mjgraf · February 21, 2013, 18:00

not sure, don't use DesignModeler/Workbench

Quote:

Originally Posted by siw

mjgraf, are you referring to DesignModeler commands? Because as you can see I have made the geometry in DM (by two spheres using a smaller one to slice out the material from the larger one and then a slice by place to cut it in half). The mesh in the image is with MultiZone.

I'm simply asking about why this is not a sweepable body in Meshing.

diamondx · February 21, 2013, 18:07

i guess he does not see it as a sweepable body because of the way you created your geometry. if you had used a rotate or an extrude option, things will have been different. I'm just guessing here...

jrunsten · February 22, 2013, 02:17

From the picture you attached, it looks swept to me?
I tried as well and managed to get a swept mesh with "Src/Trg Selection" set to Manual or Automatic Thin

February 21, 2013, 18:07		#5
diamondx Super Moderator Ghazlani M. Ali Join Date: May 2011 Location: Tokyo, Japan Posts: 1,385 Blog Entries: 23 Rep Power: 28	i guess he does not see it as a sweepable body because of the way you created your geometry. if you had used a rotate or an extrude option, things will have been different. I'm just guessing here... __________________ Regards, New to ICEM CFD, try this document --> https://goo.gl/KAOIwm Ali

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February 21, 2013, 16:26		#3
siw Senior Member Stuart Join Date: Jul 2009 Location: Portsmouth, England Posts: 733 Rep Power: 25	mjgraf, are you referring to DesignModeler commands? Because as you can see I have made the geometry in DM (by two spheres using a smaller one to slice out the material from the larger one and then a slice by place to cut it in half). The mesh in the image is with MultiZone. I'm simply asking about why this is not a sweepable body in Meshing.

February 22, 2013, 02:17		#6
jrunsten Senior Member Josef Runsten Join Date: Jul 2010 Location: Gothenburg, Sweden Posts: 188 Rep Power: 23	From the picture you attached, it looks swept to me? I tried as well and managed to get a swept mesh with "Src/Trg Selection" set to Manual or Automatic Thin