ICEM: Rotating and copying block and geometry issue

ama294 · November 27, 2017, 18:43

Dear all,

I am simulating wind turbine of 3 blades. I have a problem when I tried to rotate and copy the one-third of the geometry and block: the association of the new blocks' edges is pointing toward the original geometry's curves. However, only a few vertices are misplaced and jumped to the original points.

Thanks in advance
Aziz

eeLio · January 11, 2018, 13:47

Quote:

Originally Posted by ama294

Dear all,

I am simulating wind turbine of 3 blades. I have a problem when I tried to rotate and copy the one-third of the geometry and block: the association of the new blocks' edges is pointing toward the original geometry's curves. However, only a few vertices are misplaced and jumped to the original points.

Thanks in advance
Aziz

Dear aziz,

Have you solved your problem?

I have the same problem rotating a 120 deg sector of a horizontal axis tidal turbine

best

eeLio

ama294 · January 11, 2018, 15:28

Dear eeLio,
I went over it by rotating the blocking and geometry but without copying the original (do not select copy). The combination of the rotor parts was done in Fluent, but you need to define the interfaces between the periodic surfaces of rotor parts and also interfaces between outer domain surfaces and the rotor surfaces

Best
Aziz

eeLio · January 12, 2018, 05:58

Dear Aziz,

If I well understood you rotated your geometry and blocking in ICEM?

Did you go on Blocking/Transform Blocks/Rotate Blocks or Blocking/Transform Blocks/Copy Periodic Blocking?

I tried without copy the blocking but even just rotating it few edges are distorted describing circular patterns from one sector to the other/s.

best

eelio

ama294 · January 12, 2018, 18:04

Yes correct in ICEM.
Blocking/Transform Blocks/Rotate Blocks select transform geometry also but do not select copy. Then, define the other parameters (rotation axis, angle and center point) and click apply.
If this does not work then before you rotate you may need to check edges and vertices association (right click edges under blocking and select show association)

Hope this will help
Best
Aziz

November 27, 2017, 18:43	ICEM: Rotating and copying block and geometry issue	#1
ama294 Member Abdulaziz Abutunis Join Date: Aug 2014 Posts: 43 Rep Power: 12	Dear all, I am simulating wind turbine of 3 blades. I have a problem when I tried to rotate and copy the one-third of the geometry and block: the association of the new blocks' edges is pointing toward the original geometry's curves. However, only a few vertices are misplaced and jumped to the original points. Thanks in advance Aziz

January 11, 2018, 15:28		#3
ama294 Member Abdulaziz Abutunis Join Date: Aug 2014 Posts: 43 Rep Power: 12	Dear eeLio, I went over it by rotating the blocking and geometry but without copying the original (do not select copy). The combination of the rotor parts was done in Fluent, but you need to define the interfaces between the periodic surfaces of rotor parts and also interfaces between outer domain surfaces and the rotor surfaces Best Aziz

January 12, 2018, 05:58		#4
eeLio New Member Federico Join Date: Sep 2017 Posts: 13 Rep Power: 9	Dear Aziz, If I well understood you rotated your geometry and blocking in ICEM? Did you go on Blocking/Transform Blocks/Rotate Blocks or Blocking/Transform Blocks/Copy Periodic Blocking? I tried without copy the blocking but even just rotating it few edges are distorted describing circular patterns from one sector to the other/s. best eelio

January 12, 2018, 18:04		#5
ama294 Member Abdulaziz Abutunis Join Date: Aug 2014 Posts: 43 Rep Power: 12	Yes correct in ICEM. Blocking/Transform Blocks/Rotate Blocks select transform geometry also but do not select copy. Then, define the other parameters (rotation axis, angle and center point) and click apply. If this does not work then before you rotate you may need to check edges and vertices association (right click edges under blocking and select show association) Hope this will help Best Aziz