Solving Two Way FSI over HPC

- May 12, 2024 at 4:02 pm
  
  Syed Anas Nisar
  Subscriber
  
  Howdy,
  
  I am trying using HPC to solve two-way FSI from the Command Line Interface. I set up the entire problem coupling static structural and fluent on Workbench using system coupling. Over the workbench, I have already solved it and it generated results smoothly to validate the protocols. Then, I exported the setup by clicking on the setup of the System Coupling module inside the workbench and then uploaded the exported directory over HPC.
  
  The working directory consists of these folders and sub-folders;
  1) Fluent_1
  - fluent.cas
  - fluent.dat
  - fluent
  2) Mechanical_2
  - Mechanical.dat
  - Mechanical
  3) SyC
  - Settings
  4) export
  
  The .slurm file is calling these commands
  module purge
  module load ANSYS/2023R2
  unset SLURM_GTIDS
  $EBROOTANSYS/v*/SystemCoupling/bin/systemcoupling -R systemcoupling.py
  where systemcupling.py consists of
  Open()
  Solve()
  
  Now I am experiencing this error;
  To begin a coupled analysis setup, define at least two coupling participants, one interface, and one data transfer
  
  Can you please help me to solve this issue.
  
  Thanks,
  
  Anas
- May 14, 2024 at 8:22 am
  
  Rahul
  Ansys Employee
  
  Hello Anas,
  
  Just ensure that you are using correct files on your HPC and check if all the participants files are transferred to HPC.
  
  To run co-simulation at least two coupling participants, one interface, and one data transfer is necessary.
  
  I would recommend you to follow this workshop and refer to user manual to know more about workflow.
  Solving Co-Simulations from the Command Line (ansys.com) and Reed Valve FSI Co-Simulation with Partial Setup Export from Workbench (Fluent-Mechanical) (ansys.com)
  
  Using Parallel Processing Capabilities (ansys.com)
  Hope this helps!