Help for Overset Mesh for EGLIN Store Separation Test Case

- December 8, 2019 at 10:50 am
  
  franceriboli
  Subscriber
  
  Hi guys,
  
  I have some questions regarding the setup of a transient store separation problem, using overset mesh and UDF in Ansys Fluent. The geometry is the one from the wide known EGLIN test case: a 4-fin store mounted under the pylon of a 45° swept wing.
  
  The first problem is that the store lays at a minimum distance of 1.7 mm from the pylon, therefore when creating the overset interface I get a lot of orphan cells, can someone explain me how to deal with such problem? Can I create an additional refinement mesh close to the pylon?
  
  The second problem is the UDF. I found the one attached online, but I would like to know where can I find an explanation for the variable used. Is there a Database of variables that can be used in 6-dof problems? Like how do you setup the model of the ejection forces?
  
  Thank you for your help.
- December 9, 2019 at 10:59 am
  
  saifali
  Subscriber
  
  +1
- April 27, 2021 at 1:44 pm
  
  zaki_aero
  Subscriber
  
  hi, i am looking to simulate the eglin store separation canbn you help me ., where can i find the udf please n
- April 27, 2021 at 3:14 pm
  
  Rob
  Ansys Employee
  
  It's a 6DOF application, so if we don't make the tutorial public you can use the examples in the documentation to write your own. n

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