pump FSI

Yining CHEN · June 17, 2019, 06:56

Hello!

I am new about FSI simulation.

I simulate a periodic domain of the pump's rotor and stator from a 3D CAD file.

The procedure is...

3D cad file -> create periodic and fluid domain -> import ansys geometry -> export to turbogrid(to create mesh) -> setup CFX-Pre -> RESULT

Is it possible to do the FSI simulation by this cfx result?

or I need to import origin cad file into ansys to do the FSI?

Thnak you~

Jiricbeng · June 19, 2019, 01:26

Hi,

it depends if you are talking about 1way or 2way FSI.

1way: just export the results (e.g. pressure) from CFX and apply on the pump structure.
2way: import CAD file into CFX Pre, define FSI and you can initialize the results from your previous analysis. 2way FSI is a very complex analysis, you may encounter many issues and the result may not worth it.

Yining CHEN · June 20, 2019, 00:10

Thank you so much!

I found some tutorial videos on Youtube about 1way of FSI.

It seems that 1way is easier than 2way!

Thanks for your reply!

Jiricbeng · June 20, 2019, 11:34

1 way is much more easier, in 2 way FSI you would come across many difficulties. SInce you do not have years of experience in CFX I would not recommend 2 way FSI. Go for 1 way.

June 17, 2019, 06:56	pump FSI	#1
Yining CHEN New Member Yining CHEN Join Date: Jul 2018 Location: Japan Posts: 12 Rep Power: 7	Hello! I am new about FSI simulation. I simulate a periodic domain of the pump's rotor and stator from a 3D CAD file. The procedure is... 3D cad file -> create periodic and fluid domain -> import ansys geometry -> export to turbogrid(to create mesh) -> setup CFX-Pre -> RESULT Is it possible to do the FSI simulation by this cfx result? or I need to import origin cad file into ansys to do the FSI? Thnak you~

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June 19, 2019, 01:26		#2
Jiricbeng Senior Member Jiri Join Date: Mar 2014 Posts: 218 Rep Power: 13	Hi, it depends if you are talking about 1way or 2way FSI. 1way: just export the results (e.g. pressure) from CFX and apply on the pump structure. 2way: import CAD file into CFX Pre, define FSI and you can initialize the results from your previous analysis. 2way FSI is a very complex analysis, you may encounter many issues and the result may not worth it.

June 20, 2019, 00:10		#3
Yining CHEN New Member Yining CHEN Join Date: Jul 2018 Location: Japan Posts: 12 Rep Power: 7	Thank you so much! I found some tutorial videos on Youtube about 1way of FSI. It seems that 1way is easier than 2way! Thanks for your reply!

June 20, 2019, 11:34		#4
Jiricbeng Senior Member Jiri Join Date: Mar 2014 Posts: 218 Rep Power: 13	1 way is much more easier, in 2 way FSI you would come across many difficulties. SInce you do not have years of experience in CFX I would not recommend 2 way FSI. Go for 1 way.