Element type 1 is not the same shape as FLUID220

- November 16, 2018 at 1:45 am
  
  seckin
  Subscriber
  
  Hi
  
  I am trying to simulate underwater modal analysis. But i have a problem which is "Element type 1 is not the same shape as FLUID220"
  
  What is the problem and how can i solve the issue?
  
  The 2 below are my inputs as command
  
  Best Regards
- November 23, 2018 at 1:09 am
  
  Rohith Patchigolla
  Ansys Employee
  
  Hello Seckin,
  
  From element documentation for FLUID220 and FLUID221 in ANSYS help, you can see that FLUID220 is a 20-node hex where as FLUID221 is a 10-node tet.
  
  This error means that you are trying to switch a tet (SOLID187) to a hex (FLUID220).
  
  Please check what kind of elements the body contains. If it contains only tets, change et,matid,220 to et,matid,221
  
  Hope this helps.
  
  Best regards,
  
  Rohith