STAR-CCM Macro Automating Domain Regions

SmallAnt · October 2, 2023, 08:11

Hi,

I'm trying to automate my workflow so that a part (let's say named "Domain") is to be split into 6 surfaces (splitting by angle 89 deg) and then using 'assigned part surfaces to regions' so I can automate the Region-Physics quickly for rapid prototyping in my organisation.

What I'm having trouble with is that I'm having trouble distinguishing which part surfaces are which of the domain (i.e. Ground Plane, Walls, Inlet & Outlet).

---

I thought about potentially doing this by identifying surfaces by their geometric extremities to select and name each surface accordingly. This seems quite complex but robust if possible.

I also thought about that the 'Split Surfaces into Regions' feature in Star seem to split the surfaces in a consistent order:

(Top first, right, back, left, bottom, front) (in respect to X being forward and Y being span-wise)

and I could rename the surfaces accordingly (inlet ground walls etc) to the order given by the file-tree after splitting it. Although I'm not sure if this is robust and consistent...

Are there any suggestions / ideas from the CFD community? Any insight would be helpful. I can refer to the API but it's huge! A pointer would be helpful.

- Ant
- Auto student.

cwl · October 2, 2023, 12:57

I'm not sure that is the point wherein automation has to be applied - why not just use part with pre-split and named surfaces?

Aeronautics El. K. · October 27, 2023, 05:49

Quote:

Originally Posted by cwl

I'm not sure that is the point wherein automation has to be applied - why not just use part with pre-split and named surfaces?

I agree with this. If the domain surface names are identical to the region boundary names, then the only operation that needs to be automated is to assign the part to the region. Then the boundaries get the correct surfaces.

cwl · October 27, 2023, 06:55

I'd say - automation is more about Filters and Dynamic Queues, but I do not understand why the topic starter wants to automate something that is more like an input.

Aeronautics El. K. · October 27, 2023, 18:44

Indeed filters are a nice way! I've also used tags but not dynamic queues I think. I'm curious now...

I kinda see what Ant is trying to do. Perhaps trying to create something like a template sim file but perhaps not in the most elegant way?

October 2, 2023, 08:11	STAR-CCM Macro Automating Domain Regions	#1
SmallAnt New Member Antoan Phu Join Date: Oct 2023 Posts: 1 Rep Power: 0	Hi, I'm trying to automate my workflow so that a part (let's say named "Domain") is to be split into 6 surfaces (splitting by angle 89 deg) and then using 'assigned part surfaces to regions' so I can automate the Region-Physics quickly for rapid prototyping in my organisation. What I'm having trouble with is that I'm having trouble distinguishing which part surfaces are which of the domain (i.e. Ground Plane, Walls, Inlet & Outlet). --- I thought about potentially doing this by identifying surfaces by their geometric extremities to select and name each surface accordingly. This seems quite complex but robust if possible. I also thought about that the 'Split Surfaces into Regions' feature in Star seem to split the surfaces in a consistent order: (Top first, right, back, left, bottom, front) (in respect to X being forward and Y being span-wise) and I could rename the surfaces accordingly (inlet ground walls etc) to the order given by the file-tree after splitting it. Although I'm not sure if this is robust and consistent... Are there any suggestions / ideas from the CFD community? Any insight would be helpful. I can refer to the API but it's huge! A pointer would be helpful. - Ant - Auto student.

October 27, 2023, 18:44		#5
Aeronautics El. K. Senior Member Lefteris Join Date: Oct 2011 Location: UK Posts: 337 Rep Power: 15	Indeed filters are a nice way! I've also used tags but not dynamic queues I think. I'm curious now... I kinda see what Ant is trying to do. Perhaps trying to create something like a template sim file but perhaps not in the most elegant way? __________________ Lefteris

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October 2, 2023, 12:57		#2
cwl Senior Member Chaotic Water Join Date: Jul 2012 Location: Elgrin Fau Posts: 435 Rep Power: 17	I'm not sure that is the point wherein automation has to be applied - why not just use part with pre-split and named surfaces?

October 27, 2023, 06:55		#4
cwl Senior Member Chaotic Water Join Date: Jul 2012 Location: Elgrin Fau Posts: 435 Rep Power: 17	I'd say - automation is more about Filters and Dynamic Queues, but I do not understand why the topic starter wants to automate something that is more like an input.