[DesignModeler] Creating Two Separate Bodies in Design Modeller

Kapi · July 28, 2015, 18:27

Hi sazeda,

try Boolean to create subtract bodies and then preserve them.
Boolean
Operation: Subtract
Preserve tool bodies?: Yes

Cheers
KAPI

enayath · August 18, 2015, 19:00

Hello folks,

I created a 3D geometry. I would like to use symmtery/mirror application as I draw half of my domain. It seems this feature should be available in design modeler as it is a basic one but can not find it. Any idea would be appreciated!

Kapi · August 18, 2015, 21:18

Hi Hooman,

You dont need to create other half.
Run your simulation on current geometry just give Boundary condition of "Symmetry" on the symmetry surface.

Cheers
KAPI

enayath · August 18, 2015, 21:28

Dear Kapi,

Thanks for the reply. Basically I want to use it inside a full 3d geometry and the figure I showed, is about 1/9 of the geometry. I would be grateful if you could still help me to mirror the geometry to both x and y planes.

Thanks!

enayath · August 19, 2015, 11:06

Kapa,

I found it. I needed to use "mirror" from body transformation.
In order to copy the geometry you need to use "pattern".

azna · August 19, 2015, 12:24

Quote:

Originally Posted by enayath

Dear Kapi,

Thanks for the reply. Basically I want to use it inside a full 3d geometry and the figure I showed, is about 1/9 of the geometry. I would be grateful if you could still help me to mirror the geometry to both x and y planes.

Thanks!

Hi,

If you just want to see the results after running the simulation, you can use mirror option in fluent or in the CFD post to see the full geometry.

enayath · August 19, 2015, 12:26

Azna,

No ...it is different...thanks for the time though...I posted the correct answer above.

Best

SJSW · September 10, 2015, 08:27

"Add Frozen" and "Form New Part" is OK for a combination of solid and fluid bodies.
The interfaces would become "Coupled" automatically.
However, if the two bodies are of the same type (fluid or solid) and you need multiple cell zones, these operations would not work.

Following the tutorial found in the official site, I tried "Mesh control," but it said
"
writing contact_region-src (type interface) (mixture) ... Done.
writing contact_region-trg (type interface) (mixture) ... Done.
writing sliding-interface contact_region ... Done
"

Does it matter? and what's the difference? I don't know.
Could someone help?

Antanas · September 10, 2015, 12:30

Quote:

Originally Posted by SJSW

"Add Frozen" and "Form New Part" is OK for a combination of solid and fluid bodies.
The interfaces would become "Coupled" automatically.
However, if the two bodies are of the same type (fluid or solid) and you need multiple cell zones, these operations would not work.

Following the tutorial found in the official site, I tried "Mesh control," but it said
"
writing contact_region-src (type interface) (mixture) ... Done.
writing contact_region-trg (type interface) (mixture) ... Done.
writing sliding-interface contact_region ... Done
"

Does it matter? and what's the difference? I don't know.
Could someone help?

"Add Frozen" just prevents intersected bodies from union. "Form New Part" just makes multibody part from bodies in order to create conformal mesh in AM. Designation of bodies as "Fluid" & "Solid" is mainly for visualisation purpose, fluid makes body transparent. I don't think it affects anything else.

AeroAjaykumar · June 13, 2016, 05:37

How to create duplicate in ANSYS 16.2 workbench?

diamondx · June 13, 2016, 09:36

Please start a new thread, explain what you want to do, and include screenshot

shravan2650 · December 13, 2016, 05:50

You can also use Boolean function
- Create > Boolean : Select subtract , select the target and tool bodies; For the option preserve tool bodies -select 'yes'

Doing this will give you 2 separate bodies

et.one · January 25, 2018, 09:42

Hi,

I have the same problem. I would like to create different parts ( different connected volume) but all being part of one body. I have not found anything on the forum.

Please Can anyone help me or tell me where I can find the answer?

thank you very much in advance

enayath · January 25, 2018, 11:20

I am not sure what you meant.

You can have different bodies in one part n order to make a conformal mesh and let FLUENT take care of the interfaces automatically. If you make different parts, you will end up in a non-conformal mesh and you need to assign the interfaces manually.

Best

et.one · January 25, 2018, 11:27

Hi enayath,

thanks for your reply. I have got the geometry that I have attached. I was able to create a single body with different parts which should be connected. I don't have any problem if I want to create a simple tetrahedral mesh. However if I want to create a hexahedral mesh the mesh software keeps giving me an error and I do not understand why. Please can you help me ?

Thanks

enayath · January 25, 2018, 11:57

I can not see the attachment.

et.one · January 25, 2018, 12:30

sorry now you should have access

et.one · January 25, 2018, 12:30

https://ibb.co/ioMWrw

enayath · January 25, 2018, 12:34

You need to play with the "settings". Try Multizone instead of automatic and set everything to fine instead of coarse. You may also need to decrease the min length or face size in the settings.

kailash007 · June 6, 2018, 17:31

Quote:

Originally Posted by vivekananda

ya. if you do with frozen, you will have two independent body. But if you use slice option you will have two separate bodies. The interface will have src, trg and several wall regions. If you add to bodies using form new part, you will have interace common to both bodies. But you will have interface regions with
wall-part-fluid, wall-part-solid, wall-part-fluid-part-solid, and shadow regions.
Does anyone know why this happens? How to create common interface?

Yes i am also facing the same issue. Anyone know how to solve this ?

July 28, 2015, 18:27		#21
Kapi Senior Member Join Date: Apr 2014 Location: Melbourne Posts: 584 Rep Power: 14	Hi sazeda, try Boolean to create subtract bodies and then preserve them. Boolean Operation: Subtract Preserve tool bodies?: Yes Cheers KAPI azna and sazeda like this.

August 18, 2015, 19:00	Symmetry/mirror feature in Design modeler workbench	#22
enayath Senior Member Joe Join Date: Feb 2012 Location: Canada Posts: 111 Rep Power: 14	Hello folks, I created a 3D geometry. I would like to use symmtery/mirror application as I draw half of my domain. It seems this feature should be available in design modeler as it is a basic one but can not find it. Any idea would be appreciated!

June 13, 2016, 05:37	Design Modular	#30
AeroAjaykumar New Member Ajaykumar Join Date: Jun 2016 Posts: 1 Rep Power: 0	How to create duplicate in ANSYS 16.2 workbench?

June 13, 2016, 09:36		#31
diamondx Super Moderator Ghazlani M. Ali Join Date: May 2011 Location: Tokyo, Japan Posts: 1,385 Blog Entries: 23 Rep Power: 29	Please start a new thread, explain what you want to do, and include screenshot __________________ Regards, New to ICEM CFD, try this document --> https://goo.gl/KAOIwm Ali

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August 18, 2015, 21:18		#23
Kapi Senior Member Join Date: Apr 2014 Location: Melbourne Posts: 584 Rep Power: 14	Hi Hooman, You dont need to create other half. Run your simulation on current geometry just give Boundary condition of "Symmetry" on the symmetry surface. Cheers KAPI

August 18, 2015, 21:28		#24
enayath Senior Member Joe Join Date: Feb 2012 Location: Canada Posts: 111 Rep Power: 14	Dear Kapi, Thanks for the reply. Basically I want to use it inside a full 3d geometry and the figure I showed, is about 1/9 of the geometry. I would be grateful if you could still help me to mirror the geometry to both x and y planes. Thanks!

August 19, 2015, 11:06		#25
enayath Senior Member Joe Join Date: Feb 2012 Location: Canada Posts: 111 Rep Power: 14	Kapa, I found it. I needed to use "mirror" from body transformation. In order to copy the geometry you need to use "pattern".

August 19, 2015, 12:26		#27
enayath Senior Member Joe Join Date: Feb 2012 Location: Canada Posts: 111 Rep Power: 14	Azna, No ...it is different...thanks for the time though...I posted the correct answer above. Best

September 10, 2015, 08:27		#28
SJSW Senior Member Join Date: Jun 2014 Location: Taiwan Posts: 100 Rep Power: 11	"Add Frozen" and "Form New Part" is OK for a combination of solid and fluid bodies. The interfaces would become "Coupled" automatically. However, if the two bodies are of the same type (fluid or solid) and you need multiple cell zones, these operations would not work. Following the tutorial found in the official site, I tried "Mesh control," but it said " writing contact_region-src (type interface) (mixture) ... Done. writing contact_region-trg (type interface) (mixture) ... Done. writing sliding-interface contact_region ... Done " Does it matter? and what's the difference? I don't know. Could someone help?

December 13, 2016, 05:50		#32
shravan2650 New Member Join Date: Feb 2016 Posts: 1 Rep Power: 0	You can also use Boolean function - Create > Boolean : Select subtract , select the target and tool bodies; For the option preserve tool bodies -select 'yes' Doing this will give you 2 separate bodies

January 25, 2018, 09:42		#33
et.one New Member Join Date: Jul 2017 Posts: 11 Rep Power: 8	Hi, I have the same problem. I would like to create different parts ( different connected volume) but all being part of one body. I have not found anything on the forum. Please Can anyone help me or tell me where I can find the answer? thank you very much in advance

January 25, 2018, 11:20		#34
enayath Senior Member Joe Join Date: Feb 2012 Location: Canada Posts: 111 Rep Power: 14	I am not sure what you meant. You can have different bodies in one part n order to make a conformal mesh and let FLUENT take care of the interfaces automatically. If you make different parts, you will end up in a non-conformal mesh and you need to assign the interfaces manually. Best

January 25, 2018, 11:27		#35
et.one New Member Join Date: Jul 2017 Posts: 11 Rep Power: 8	Hi enayath, thanks for your reply. I have got the geometry that I have attached. I was able to create a single body with different parts which should be connected. I don't have any problem if I want to create a simple tetrahedral mesh. However if I want to create a hexahedral mesh the mesh software keeps giving me an error and I do not understand why. Please can you help me ? Thanks

January 25, 2018, 11:57		#36
enayath Senior Member Joe Join Date: Feb 2012 Location: Canada Posts: 111 Rep Power: 14	I can not see the attachment.

January 25, 2018, 12:30		#37
et.one New Member Join Date: Jul 2017 Posts: 11 Rep Power: 8	sorry now you should have access

January 25, 2018, 12:34		#39
enayath Senior Member Joe Join Date: Feb 2012 Location: Canada Posts: 111 Rep Power: 14	You need to play with the "settings". Try Multizone instead of automatic and set everything to fine instead of coarse. You may also need to decrease the min length or face size in the settings.