Issues trying to inflate an open airbag using a wind tunnel

- July 10, 2024 at 11:36 pm
  
  James
  Subscriber
  
  I am trying to model a torus like structure which inflates using the plume of a rocket engine. I started off by trying to construct this fabric mesh ontop of a rigid platform with a wind tunnel going down into the fabric to simulate the airflow/pressure from the rocket. I just finished adding in all the keyword files for it to run, but nothing happens upon simulation. Any ideas or help would be greatly appreciated.
- July 12, 2024 at 4:33 pm
  
  Ian Do
  Ansys Employee
  
  Hello James,
  I can't see how the parts are relative to each other during the inflation. Maybe a hand sketch showing the desired final config with parts all labeled will help.
  Below is a simple example to follow. It is defined based on the new S-ALE approach. ALE has a steep learning curve, if you have not taken a class. If you can access ALH (ANSYS Learning Hub), pls find my ALE/S-ALE class there.
  Best Regards,
  Ian Do
  https://ansys-my.sharepoint.com/:u:/r/personal/ian_do_ansys_com/Documents/0-SALE/SALE-examples/001-airbag/01saleairbag/02saleairbag/02saleairbag.zip?csf=1&web=1&e=ek4Cpz
- July 12, 2024 at 4:37 pm
  
  Ian Do
  Ansys Employee
  
  Here is another airbag ex model:
  https://ansys-my.sharepoint.com/:u:/r/personal/ian_do_ansys_com/Documents/0-SALE/SALE-examples/airbag1-mv/airbag1-mv-fine/airbagf2.zip?csf=1&web=1&e=VprAQW