Harmonic acoustic, change type solver

- February 27, 2020 at 6:55 pm
  
  mach1991
  Subscriber
  
  Good afternoon everyone.
  
  I am running a simulation in harmonic acoustic, when I run the solver, it tells me that I don't have enough ram memory, which is true, I have little memory.
  
  The issue is that the forum has read that changed the solver iteratively, it can run more efficiently in terms of ram memory.
  
  My question is how to change the solver so that it runs iteratively, instead of directly?
- March 3, 2020 at 11:31 am
  
  Aniket
  Forum Moderator
  
  Check Details of analysis settings> Solver Controls> Solver type.
  
  Iterative needs less RAM, but it needs a large hard drive space and is slower as compared to direct. But given your RAM is low, the solver should choose the iterative solver automatically, and if you are still getting the error which can signify lack of RAM or Hard drive space for the iterative solver.
  
  -Aniket
  
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- March 3, 2020 at 5:28 pm
  
  mach1991
  Subscriber
  
  I attached a screenshot. From the tab of my solver detail, which option should I change? I can't find the option of "Solver type"
- March 12, 2020 at 10:48 am
  
  Ashish Khemka
  Forum Moderator
  
  Hi,
  
  You might need to use Commands (APDL) object to change the solver type. Please refer to the following link which talks about different solvers available for Full Harmonic Acoustic analysis:
  
  https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v201/en/ans_acous/acous_solve_analset.html%23acous_solve_harmset
  
  In this link refer to the following section:
  
  10.1.2.1.2. Specifying the Analysis Solver
  
  You will need to use the EQSLV command. Hope this helps.
  
  Regards,
  
  Ashish Khemka
  
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