[ANSYS Meshing] Overlapping Bodies error

suyesh · March 9, 2016, 10:57

I am trying to mesh an assembly imported from solidworks within an enclosure generated in the design modeller. There was no interference in the assembly in solidworks. But after adding the enclosure and meshing it, the Ansys Meshing does not extract the meshed file and gives an error message as "The mesh file exporter does not support overlapping geometry in Contact Regions. Please resolve the issue and try again."

Do i have to run a boolean operation on the enclosure? or is it because of any other problem? Kindly point out what the cause might be and how i could solve this problem.

I have tried to see the problematic overlapping geometry but its not visible even in the wireframe mode. I dont have the option of overlapping body on mesh>show
I have also checked the named selections, they are fine.

Kapi · March 9, 2016, 18:00

try and delete all the "contact regions" in the list and see if that helps.
It could have created multiple contacts and hence the error.

suyesh · March 10, 2016, 13:23

Thanks a lot!!! i checked the contacts in detail and found that Meshing had automatically named same connections twice and created a few unwanted connections. Guess the problem is solved! Cheers!!!

Kapi · March 10, 2016, 17:06

no worries

zengspring · March 10, 2016, 21:56

As shown in follow picture , I used CFX to simulate turbine machinery filed
You can see that the whole field is divided into three parts .The middle filed is set to rotation frame, rotation velocity is 3000 r/min ,and both sides is set to stationary frame.
Boundary condition ,inlet : total pressure
outlet:mass flow rate
interface: frozen rotor
wall: no slip wall

The results show that the middle part has not influence on both sides . what's wrong with that?

Kapi · March 15, 2016, 17:17

this is Ansys Meshing and geometry forum, please post your questions in CFX forum.
Plus dont post your question in any thread, search for your specific thread and post there!

swaraj_lewis · July 24, 2018, 01:03

when i am modeling a helical coil and submerge it inside two different volume and then creating the naming was for coil and two volume. during mesh update, it gives error saying overlap mesh. this is due to helical coil sharing interface in two different name bodies.

is there any alternative solution in modelling only??

March 9, 2016, 10:57	Overlapping Bodies error	#1
suyesh New Member Suyesh Join Date: Mar 2016 Posts: 9 Rep Power: 10	I am trying to mesh an assembly imported from solidworks within an enclosure generated in the design modeller. There was no interference in the assembly in solidworks. But after adding the enclosure and meshing it, the Ansys Meshing does not extract the meshed file and gives an error message as "The mesh file exporter does not support overlapping geometry in Contact Regions. Please resolve the issue and try again." Do i have to run a boolean operation on the enclosure? or is it because of any other problem? Kindly point out what the cause might be and how i could solve this problem. I have tried to see the problematic overlapping geometry but its not visible even in the wireframe mode. I dont have the option of overlapping body on mesh>show I have also checked the named selections, they are fine. Last edited by suyesh; March 9, 2016 at 11:10. Reason: Have tried the approaches suggested in earlier posts

March 10, 2016, 21:56	CFX simulation to turbine machinery	#5
zengspring New Member Join Date: Mar 2016 Posts: 1 Rep Power: 0	As shown in follow picture , I used CFX to simulate turbine machinery filed You can see that the whole field is divided into three parts .The middle filed is set to rotation frame, rotation velocity is 3000 r/min ,and both sides is set to stationary frame. Boundary condition ,inlet : total pressure outlet:mass flow rate interface: frozen rotor wall: no slip wall The results show that the middle part has not influence on both sides . what's wrong with that?

July 24, 2018, 01:03	do not support overlapped named boundary	#7
swaraj_lewis New Member Swaraj Lewis Join Date: Jul 2018 Posts: 1 Rep Power: 0	when i am modeling a helical coil and submerge it inside two different volume and then creating the naming was for coil and two volume. during mesh update, it gives error saying overlap mesh. this is due to helical coil sharing interface in two different name bodies. is there any alternative solution in modelling only??

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March 9, 2016, 18:00		#2
Kapi Senior Member Join Date: Apr 2014 Location: Melbourne Posts: 584 Rep Power: 14	try and delete all the "contact regions" in the list and see if that helps. It could have created multiple contacts and hence the error.

March 10, 2016, 13:23		#3
suyesh New Member Suyesh Join Date: Mar 2016 Posts: 9 Rep Power: 10	Thanks a lot!!! i checked the contacts in detail and found that Meshing had automatically named same connections twice and created a few unwanted connections. Guess the problem is solved! Cheers!!!

March 10, 2016, 17:06		#4
Kapi Senior Member Join Date: Apr 2014 Location: Melbourne Posts: 584 Rep Power: 14	no worries

March 15, 2016, 17:17		#6
Kapi Senior Member Join Date: Apr 2014 Location: Melbourne Posts: 584 Rep Power: 14	this is Ansys Meshing and geometry forum, please post your questions in CFX forum. Plus dont post your question in any thread, search for your specific thread and post there!