Basic AMI question - interface shape

akidess · January 8, 2016, 03:24

I would like to simulate a rotor which is tightly encapsulated by a stator with the shape depicted in the attached image. I'm guessing I can't use a single AMI interface due to the kink. Is that assumption correct? Can I circumvent the problem using two AMI interfaces - one for the top, and one for the bottom part of the rotor?

mkraposhin · January 8, 2016, 08:40

Sorry, can you show axis of rotation on your sketch?

akidess · January 8, 2016, 09:10

Yeah, I should have included that

I added the rotation axis to the figure. I didn't draw it 100% proper, but it should be symmetric around that axis.

mkraposhin · January 8, 2016, 09:30

Ok, now i see (or i think that i see).

I don't see any barriers to use single AMI interface. After 3 years of experience with AMI, we found next two requirements that should be satisfied:

1) Rotor and Stator surfaces should match each other exactly (at least at the level of CAD geometry)

2) Rotor and stator must be meshed with as much as possible uniform grids with approximately same length of of edges

akidess · January 8, 2016, 10:38

Great, thank you for your hints!

January 8, 2016, 08:40		#2
mkraposhin Senior Member Matvey Kraposhin Join Date: Mar 2009 Location: Moscow, Russian Federation Posts: 355 Rep Power: 21	Sorry, can you show axis of rotation on your sketch? __________________ MDPI Fluids (Q2) special issue for OSS software: https://www.mdpi.com/journal/fluids/..._modelling_OSS GitHub: https://github.com/unicfdlab Linkedin: https://linkedin.com/in/matvey-kraposhin-413869163 RG: https://www.researchgate.net/profile/Matvey_Kraposhin

January 8, 2016, 09:10		#3
akidess Senior Member Anton Kidess Join Date: May 2009 Location: Germany Posts: 1,377 Rep Power: 29	Yeah, I should have included that I added the rotation axis to the figure. I didn't draw it 100% proper, but it should be symmetric around that axis. __________________ On twitter @akidTwit Spend as much time formulating your questions as you expect people to spend on their answer.

January 8, 2016, 09:30		#4
mkraposhin Senior Member Matvey Kraposhin Join Date: Mar 2009 Location: Moscow, Russian Federation Posts: 355 Rep Power: 21	Ok, now i see (or i think that i see). I don't see any barriers to use single AMI interface. After 3 years of experience with AMI, we found next two requirements that should be satisfied: 1) Rotor and Stator surfaces should match each other exactly (at least at the level of CAD geometry) 2) Rotor and stator must be meshed with as much as possible uniform grids with approximately same length of of edges __________________ MDPI Fluids (Q2) special issue for OSS software: https://www.mdpi.com/journal/fluids/..._modelling_OSS GitHub: https://github.com/unicfdlab Linkedin: https://linkedin.com/in/matvey-kraposhin-413869163 RG: https://www.researchgate.net/profile/Matvey_Kraposhin

January 8, 2016, 10:38		#5
akidess Senior Member Anton Kidess Join Date: May 2009 Location: Germany Posts: 1,377 Rep Power: 29	Great, thank you for your hints! __________________ On twitter @akidTwit Spend as much time formulating your questions as you expect people to spend on their answer.

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