How to Calculate Pressure force on a Selected surface

- June 29, 2020 at 3:52 am
  
  thamarai
  Subscriber
  
  Hi guys,
  
  Iam doing a pressure lost analysis in a valve, In which I want to calculate pressure force acting in the piston region as shown in fig. I used Pressure inlet and pressure outlet boundary conditions. I tried the following methods but didn't worked
  
  1.Post Processor---> Functional calculator
  >Force. I got near to zero newton force.
  
  2. Post Processor ---> Drawn a plan and through functional calculator, calculated avg pressure in the plan which didn't gave logical value ( I gave 6 bar at inlet pressure and 4.5 bar at the outlet while using this method I got pressure force more than 15 bar which is impossible )
  
  3. Report ---> Area-weighted Average/Integral/Vertext Average.. All gave zero as the result.
  
  Can you Kindly guide me to find the solution?
- June 29, 2020 at 5:10 am
  
  Keyur Kanade
  Ansys Employee
  
  I assume you are using Fluent solver.
  
  Can you please check if your solution is converged or not in Fluent?
  
  Can you please check it in Fluent using Results --> Surface Integrals?
  
  https://www.youtube.com/watch?v=SsORGWCg1ss
  
  Regards,
  
  Keyur
  
  If this helps, please mark this post as 'Is Solution' to help others.
  
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- June 29, 2020 at 11:28 pm
  
  thamarai
  Subscriber
  
  Dear Keyur,
  
  Thanks for your help. It is working..
  
  Regards,
  
  Thamaraikannan